nep-agr New Economics Papers
on Agricultural Economics
Issue of 2023‒11‒27
25 papers chosen by
  1. Does irrigation development mitigate weather extremes’ impacts and reduce poverty? Evidence from rural Southeast Asia By Manh Hung Do; Trung Thanh Nguyen
  2. Climatic stresses and rural emigration in Guatemala By Timu, Anne G.; Shee, Apurba; You, Liangzhi
  3. Adoption and impacts of agricultural technologies and sustainable natural resource management practices in fragile and conflict affected settings: A review and meta-analysis By Nshakira-Rukundo, Emmanuel; Tabe-Ojong, Martin Paul Jr.; Gebrekidan, Bisrat Haile; Agaba, Monica; Surendran-Padmaja, Subash; Dhebibi, Boubaker
  4. Climate change perception, impact and adaptation: Implications for crop insurance. By Richard KOENIG; Marielle BRUNETTE
  5. Soil Pollution, Animal Contamination and Safe Food Production: The Case of the French West Indies By P. Andres-Domenech; Valérie Angeon; Samuel Bates; Colombine Lesage
  6. Methods used to estimate the poverty impact of increases in international food prices By Minot, Nicholas; Martin, Will
  7. Coupling ecological network analysis with high-throughput sequencing-based surveys: Lessons from the next-generation biomonitoring project By Maxime Dubart; Pascal Alonso; Didac Barroso-Bergadà; N. Becker; Kevine Bethune; David Bohan; Christophe Boury; Marine Cambon; Elsa Canard; Emilie Chancerel; Julien Chiquet; Patrice David; Natasha de Manincor; Sophie Donnet; Anne Duputié; Benoit Facon; Erwan Guichoux; Tâm Le Minh; Sebastián Ortiz-Martínez; Lucie Piouceau; Ambre Sacco-Martret de Préville; Manuel Plantegenest; Céline Poux; Virginie Ravigné; Stéphane Robin; Marine Trillat; Corinne Vacher; Christian Vernière; François Massol
  8. A long term overview of freshwater fisheries in France By Thomas Changeux; Philippe Boisneau; Nicolas Stolzenberg; Chloé Goulon
  9. The impact of climate change on economic output across industries in Chile By Hernández, Karla; Madeira, Carlos
  10. Rural land management and valuation in Zimbabwe: Challenges and Prospects By Ronald Mpofu; Charles Chavunduka; Innocent Chirisa
  11. Emotional labour in the analysis of farm-based hospitality projects By Gilles Grolleau; Naoufel Mzoughi; Qurat-Ul-Ain Talpur
  12. Tracking Families That Cross the Income Threshold for Food Stamps By Maggie Isaacson; Hannah Rubinton
  13. Regional development and internal migration aspects of structural transformation: A case study of Senegal By Mukashov, Askar; Thurlow, James
  14. Some impacts of global warming on critical infrastructure protection - heat waves and the European financial sector By Tamas Somogyi; Rudolf Nagy
  15. Behavioural spillovers unpacked: estimating the side effects of social norm nudges By Picard, Julien; Banerjee, Sanchayan
  16. Customary Land Conversion in African Cities By Pierre M. Picard; Harris Selod
  17. Mapping the design and implementation of seed sector regulation: The case of Uganda By Kuhlmann, Katrin; Nalinya, Adron Naggayi; Francis, Tara; Spielman, David J.
  18. Mergers between universities and governmental research organizations in the Netherlands and Denmark. Institutional platforms for agricultural transformations. By Jappe, Arlette
  19. The Buyer Power Effect of Retail Mergers: An Empirical Model of Bargaining with Equilibrium of Fear By Céline Bonnet; Zohra Bouamra-Mechemache; Hugo Molina
  20. Application of Automated Valuation Model (AVM) in Land Rent Taxation: A Case Study of Nairobi City County By Marcel Byron Onditi
  21. Property rights regime and the Timing of Land development. Poland as a Central and Eastern European Country (CEEC). By Katarzyna Reyman; Gunther Maier
  22. A Model of Enclosures: Coordination, Conflict, and Efficiency in the Transformation of Land Property Rights By Matthew J. Baker; Jonathan Conning
  23. Setting an alternative agri-food model on the agenda in Guadeloupe : a window of opportunity for the renewal of public action? By Valérie Angeon; Sandrine Fréguin-Gresh
  24. Assessing Rural-Urban Linkages and Their Contribution to Territorial Development: Insights from Zimbabwe’s Small and Medium-Sized Cities By Sara Mercandalli; Pierre Girard; Bécaye Dione; Sandrine Michel
  25. BUILDING INTEGRATED MODELS IN ENVIRONMENTAL AND NATURAL RESOURCE ECONOMICS: THE CASE OF GORDON’S 1954 FISHERY MODEL By Baptiste Parent; Lauriane Mouysset; Antoine Missemer; Harold Levrel
  1. By: Manh Hung Do; Trung Thanh Nguyen
    Abstract: Water is critical for agriculture in developing countries and climate change has created extreme weather events that push farmers into poverty. In this study, we first examine the role of year-round irrigation at village level in ensuring irrigation at household level and helping farmers to cope with weather shocks. We then investigate the effects of irrigation on crop farming efficiency, income, and poverty of rural households. We use a panel dataset of 1, 681 households in Thailand and 1, 699 households in Vietnam collected in 2010, 2013, and 2016 with a total number of 10, 140 observations. Our results show that the availability of year-round irrigation at village level positively and significantly increases the share of irrigated land areas at household level. Besides, weather shocks significantly decrease crop farming efficiency and an improvement in irrigation has a positive effect on farming efficiency. Further, an increase in irrigated land share at household level increases crop income and total household income, and decreases poverty. Our results suggest that making irrigation water available throughout the year is needed for farmers to cope with extreme weather events and to escape from poverty. This should be done by developing infrastructure for ensuring year-round irrigation.
    Keywords: Thailand, Vietnam, Irrigation, Multidimensional poverty, Instrumental variable
    JEL: Q57 Q12 R20
    Date: 2023–07
    URL: http://d.repec.org/n?u=RePEc:tvs:wpaper:wp-034&r=agr
  2. By: Timu, Anne G.; Shee, Apurba; You, Liangzhi
    Abstract: Changes in frequency and intensity of climate and weather events are a key challenge to agricultural production among farmers in Zambia. Climate variability reduces farm productivity, which in turn contributes to household food insecurity, income variability, and reduced overall economic growth. Using improved technologies such as mechanization, improved seed varieties, irrigation, and fertilizer can improve climate resilience and farm production among smallholder farmers. However, in Zambia, as in many countries in sub-Saharan Africa, most famers lack sufficient access to credit to purchase these technologies. Limited access to credit is mainly attributed to lack of collateral, fear of losing collateral in case of a default, and low financial literacy among smallholder famers (Balana et al. 2022). Information asymmetry also makes it risky and expensive for lenders to serve smallholder farmers, thus they ration the quantity of credit offered and/or raise the interest rates making credit too expensive and inaccessible for millions of smallholder farmers. Bundling agricultural credit with insurance, commonly referred to as risk-contingent credit (RCC), provides a mechanism for addressing some of the credit access constraints faced by smallholder farmers in developing countries. RCC is a loan product that is bundled with an insurance component. RCC seeks to enhance long-term resilience to climate uncertainties by promoting optimal farm investment and productivity among smallholders through sustainable access to credit markets. Under RCC, qualifying smallholder farmers borrow funds for agricultural production from formal financial institutions such as banks and microfinance institutions with minimum collateral requirements. The borrower’s ability to repay the loan is linked to climate outcomes, which are highly correlated with farm productivity. An insurance company underwrites the climate risks (either in the form of drought or flood), such that if that underlying risk passes a certain threshold, the insurance is triggered and part or all of the borrower’s liability is transferred to the insurer. If the underlying risk remains below the threshold, the borrower repays the loan at the agreed upon interest rates and is also obligated to pay the insurance premium, as part of the loan repayment. Linking farmers’ loan repayment obligations to an underlying risk, as opposed to stringent collateral requirements, is expected to reduce the borrowing constraints faced by many poor farmers. At the same time, de-risking the lender by transferring a portion of risks to the insurance market is expected to promote credit supply, hence expanding the rural credit market (Shee et al. 2019).
    Keywords: ZAMBIA; SOUTHERN AFRICA; AFRICA SOUTH OF SAHARA; AFRICA; agricultural credit; agricultural production; climate change; climate resilience; extreme weather events; households; income; irrigation; smallholders
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:fpr:prnote:136947&r=agr
  3. By: Nshakira-Rukundo, Emmanuel; Tabe-Ojong, Martin Paul Jr.; Gebrekidan, Bisrat Haile; Agaba, Monica; Surendran-Padmaja, Subash; Dhebibi, Boubaker
    Abstract: Climate change and conflicts co-exist in many countries with significant welfare and socio-environmental implications. Different approaches are being promoted to adapt and build resilience to these fragilities including the adoption of sustainable farm practices that have the potential to increase agricultural productivity and maintain environmental sustainability. We undertake a systematic review and perform a meta-analysis to understand and synthesize the adoption and impacts of agricultural technologies and natural resource management practices with a special attention to fragile and conflict affected settings. We employ state of the art machine learning methods to enable process and selection of appropriate papers from a universe of over 78, 000 papers from leading academic databases. We find that studies on adoption and impact of agricultural technologies and natural resource management practices are highly clustered around Ethiopia and Nigeria. We do not find any studies on Small Island States. We observe a wide array of characteristics that influence adoption of these technologies. Of the over 1400 estimates of determinants collected, majority predict input technologies while very few studies and estimates are found in relation to risk management and mechanisation technologies. Our meta-analysis shows an average effect size of 7 - 9% for the different technologies and practices. For the outcomes: land productivity, food security and household welfare, we obtain effect sizes of 6, 8 and 9% respectively. We do not observe much in terms of publication bias. Both climate and conflict vulnerability not only cause far more food insecurity, poverty, and degradation of the environment on their own but also reinforce each other through the climate change – conflict linkage. For these detrimental effects to be curtailed, utilisation of climate-smart agricultural technologies and natural resource management practices need to be encouraged. We thus lend credence to the development, dissemination and upscaling of these sustainable practices. We observe a lot of space for growth and adoption of these technologies.
    Keywords: technology adoption; natural resources management; fragility; conflicts; climate change; impact resilience; agricultural technology; mechanization; food security; poverty
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:fpr:ifprid:2199&r=agr
  4. By: Richard KOENIG; Marielle BRUNETTE
    Abstract: Weather-related events represent a main threat for French farmers, and their frequency and intensity are expected to increase due to climate change. In this context, we analyse the link between climate change perception, expected impact of climate change, and potential adaptation strategies that can be implemented to face climate change. For that purpose, we analysed the results of a survey conducted in 2021 on 288 French farmers. On the basis of these data, we created two indexes: a climate change perception index and an index of concern towards the expected impact of climate change. We first present some interesting correlations between adaptation strategies and hazards. We then identify some determinants of climate change perception and the expected impacts of climate change. Finally, we highlight two adaptation paths favoured by farmers. Depending on the characteristics of their farms and their perception of exposure today, some will favour farming adaptation, while others will favour the diversification of their income. We then discuss these results in terms of the existing crop insurance scheme in France.
    Keywords: Climate change, Perception, Crop insurance, Adaptation, France.
    JEL: G22
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:ulp:sbbeta:2023-36&r=agr
  5. By: P. Andres-Domenech (BETA - Bureau d'Économie Théorique et Appliquée - AgroParisTech - UNISTRA - Université de Strasbourg - Université de Haute-Alsace (UHA) - Université de Haute-Alsace (UHA) Mulhouse - Colmar - UL - Université de Lorraine - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Valérie Angeon (ECODEVELOPPEMENT - Unité de recherche d'Écodéveloppement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Samuel Bates (LC2S - Laboratoire caribéen de sciences sociales - CNRS - Centre National de la Recherche Scientifique - UA - Université des Antilles); Colombine Lesage (PEYI - Plateforme Expérimentale sur le végétal et les agrosYstèmes Innovants en milieu tropical - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)
    Abstract: This article presents a new model to manage the provision of healthy food despite incomplete information about exposure of natural resources to a persistent pollutant (chlordecone). This toxic molecule has contaminated both terrestrial and aquatic resources for several decades in the French West Indies. As a consequence, the threat of exposing humans to contaminated food jeopardizes local agricultural and livestock activities. We address the problem that breeders face: producing healthy food with incomplete information on the animals' contamination. We examine the compatibility of respecting health-production constraints with the timing of animal management. We consider the dual set of constraints that breeders face: (1) they must achieve a target contamination rate that complies with the regulation on the Maximum Residue Limits (MRL) and (2) they must comply with a production calendar that tells them at what age the animals are to be sold. We also discuss the economic and biotechnical consequences that changes in the MRL impose on meat production. We compute the time required to decontaminate the animals and analyse the cost for farmers to adapt to (i) the regulation in place and to (ii) the more stringent health-related targets that are expected in the future. Our results are sensitive to the choice of species cattle, goats, sheep and pigs), the rearing practices, the information setting and the initial contamination rate. This paper opens strategic windows for breeders to guarantee their economic sustainability and their ability to produce healthy meat despite the incomplete information on pollution at their disposal.
    Keywords: Livestock, Soil pollution, Maximum residue limits for pesticides, Safe meat production
    Date: 2023–08–04
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04242035&r=agr
  6. By: Minot, Nicholas; Martin, Will
    Abstract: The prices of agricultural commodities have increased on international markets since the outbreak of the Covid-19 pandemic in early 2020 and spiked after the invasion of Ukraine by Russia in February 2022. The price increases were particularly notable in the case of wheat, maize, and sorghum, which are staple foods in many developing countries. This prompted a wave of research to better understand the effect of these price changes on income and poverty in low-income countries. IFPRI carried out a set of country studies to explore the poverty impact of higher staple grain prices on six countries in sub-Saharan Africa: Mali, Burkina Faso, Niger, Nigeria, Kenya, and Ethiopia (see Martin and Minot, 2023a, 2023b, and 2023c and Minot and Martin, 2023a, 2023b, and 2023c). This brief describes the methods and data used in those studies.
    Keywords: MALI; BURKINA FASO; KENYA; EAST AFRICA; NIGER; WEST AFRICA; AFRICA SOUTH OF SAHARA; AFRICA; NIGERIA; ETHIOPIA; agricultural products; markets; Coronavirus; coronavirus disease; Coronavirinae; COVID-19; prices; wheat; maize; sorghum; staple foods; developing countries; income; poverty
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:fpr:gccbrf:136917&r=agr
  7. By: Maxime Dubart (Evo-Eco-Paléo (EEP) - Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 - Université de Lille - CNRS - Centre National de la Recherche Scientifique); Pascal Alonso (UMR PHIM - Plant Health Institute of Montpellier - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - IRD - Institut de Recherche pour le Développement - UM - Université de Montpellier - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro - Montpellier SupAgro - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Didac Barroso-Bergadà (Agroécologie [Dijon] - UB - Université de Bourgogne - AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement - UBFC - Université Bourgogne Franche-Comté [COMUE] - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); N. Becker (ISYEB - Institut de Systématique, Evolution, Biodiversité - MNHN - Muséum national d'Histoire naturelle - EPHE - École Pratique des Hautes Études - PSL - Université Paris sciences et lettres - SU - Sorbonne Université - CNRS - Centre National de la Recherche Scientifique - UA - Université des Antilles); Kevine Bethune (CEFE - Centre d’Ecologie Fonctionnelle et Evolutive - UPVM - Université Paul-Valéry - Montpellier 3 - EPHE - École Pratique des Hautes Études - PSL - Université Paris sciences et lettres - UM - Université de Montpellier - CNRS - Centre National de la Recherche Scientifique - IRD [France-Sud] - Institut de Recherche pour le Développement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro - Montpellier SupAgro - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); David Bohan (Agroécologie [Dijon] - UB - Université de Bourgogne - AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement - UBFC - Université Bourgogne Franche-Comté [COMUE] - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Christophe Boury (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Marine Cambon (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Bangor University); Elsa Canard (IGEPP - Institut de Génétique, Environnement et Protection des Plantes - UR - Université de Rennes - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - INSTITUT AGRO Agrocampus Ouest - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Emilie Chancerel (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Julien Chiquet (MIA Paris-Saclay - Mathématiques et Informatique Appliquées - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Patrice David (CEFE - Centre d’Ecologie Fonctionnelle et Evolutive - UPVM - Université Paul-Valéry - Montpellier 3 - EPHE - École Pratique des Hautes Études - PSL - Université Paris sciences et lettres - UM - Université de Montpellier - CNRS - Centre National de la Recherche Scientifique - IRD [France-Sud] - Institut de Recherche pour le Développement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro - Montpellier SupAgro - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Natasha de Manincor (Evo-Eco-Paléo (EEP) - Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 - Université de Lille - CNRS - Centre National de la Recherche Scientifique, UC Riverside - University of California [Riverside] - UC - University of California); Sophie Donnet (MIA Paris-Saclay - Mathématiques et Informatique Appliquées - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Anne Duputié (Evo-Eco-Paléo (EEP) - Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 - Université de Lille - CNRS - Centre National de la Recherche Scientifique); Benoit Facon (UMR PVBMT - Peuplements végétaux et bioagresseurs en milieu tropical - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - IRD - Institut de Recherche pour le Développement - UR - Université de La Réunion - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, UMR CBGP - Centre de Biologie pour la Gestion des Populations - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRA - Institut National de la Recherche Agronomique - Montpellier SupAgro - Centre international d'études supérieures en sciences agronomiques - UM - Université de Montpellier - IRD [France-Sud] - Institut de Recherche pour le Développement - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier); Erwan Guichoux (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Tâm Le Minh (MIA Paris-Saclay - Mathématiques et Informatique Appliquées - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Sebastián Ortiz-Martínez (IGEPP - Institut de Génétique, Environnement et Protection des Plantes - UR - Université de Rennes - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - INSTITUT AGRO Agrocampus Ouest - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Lucie Piouceau (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Ambre Sacco-Martret de Préville (IGEPP - Institut de Génétique, Environnement et Protection des Plantes - UR - Université de Rennes - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - INSTITUT AGRO Agrocampus Ouest - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Manuel Plantegenest (IGEPP - Institut de Génétique, Environnement et Protection des Plantes - UR - Université de Rennes - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - INSTITUT AGRO Agrocampus Ouest - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Céline Poux (Evo-Eco-Paléo (EEP) - Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 - Université de Lille - CNRS - Centre National de la Recherche Scientifique); Virginie Ravigné (ISYEB - Institut de Systématique, Evolution, Biodiversité - MNHN - Muséum national d'Histoire naturelle - EPHE - École Pratique des Hautes Études - PSL - Université Paris sciences et lettres - SU - Sorbonne Université - CNRS - Centre National de la Recherche Scientifique - UA - Université des Antilles, UMR PVBMT - Peuplements végétaux et bioagresseurs en milieu tropical - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - IRD - Institut de Recherche pour le Développement - UR - Université de La Réunion - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Cirad-BIOS - Département Systèmes Biologiques - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement); Stéphane Robin (MIA Paris-Saclay - Mathématiques et Informatique Appliquées - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, LPSM (UMR_8001) - Laboratoire de Probabilités, Statistique et Modélisation - SU - Sorbonne Université - CNRS - Centre National de la Recherche Scientifique - UPCité - Université Paris Cité); Marine Trillat (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Corinne Vacher (BioGeCo - Biodiversité, Gènes & Communautés - UB - Université de Bordeaux - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Christian Vernière (UMR PHIM - Plant Health Institute of Montpellier - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - IRD - Institut de Recherche pour le Développement - UM - Université de Montpellier - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro - Montpellier SupAgro - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement, Cirad-BIOS - Département Systèmes Biologiques - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement); François Massol (CIIL - Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 - Institut Pasteur de Lille - RIIP - Réseau International des Instituts Pasteur - INSERM - Institut National de la Santé et de la Recherche Médicale - Université de Lille - CHRU Lille - Centre Hospitalier Régional Universitaire [Lille] - CNRS - Centre National de la Recherche Scientifique)
    Abstract: Biomonitoring ecosystems is necessary in order to evaluate risks and to efficiently manage ecosystems and their associated services. Agrosystems are the target of multiple stressors that can affect many species through effects cascading along food webs. However, classic biomonitoring, focused on species diversity or indicator species, might be a poor predictor of the risk of such whole-ecosystem perturbations. Thanks to high-throughput sequencing methods, however, it might be possible to obtain sufficient information about entire ecological communities to infer the functioning of their associated interaction networks, and thus monitor more closely the risk of the collapse of entire food webs due to external stressors. In the course of the ‘next-generation biomonitoring' project, we collectively sought to experiment with this idea of inferring ecological networks on the basis of metabarcoding information gathered on different systems. We here give an overview of issues and preliminary results associated with this endeavour and highlight the main difficulties that such next-generation biomonitoring is still facing. Going from sampling protocols up to methods for comparing inferred networks, through biomolecular, bioinformatic, and network inference, we review all steps of the process, with a view towards generality and transferability towards other systems.
    Keywords: Ecological networks, eDNA, High throughput sequencing, Logic-based machine learning, Microbiomes, Network inference, Next-generation biomonitoring, Next-generation sequencing
    Date: 2022
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-03634351&r=agr
  8. By: Thomas Changeux (MIO - Institut méditerranéen d'océanologie - IRD - Institut de Recherche pour le Développement - AMU - Aix Marseille Université - INSU - CNRS - Institut national des sciences de l'Univers - UTLN - Université de Toulon - CNRS - Centre National de la Recherche Scientifique); Philippe Boisneau (CONAPPED - Comité National de la Pêche Professionnelle en Eau Douce); Nicolas Stolzenberg (CONAPPED - Comité National de la Pêche Professionnelle en Eau Douce); Chloé Goulon (CARRTEL - Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques - USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)
    Abstract: The large-scale production and economy of French freshwater fisheries is not documented in the scientific literature. This article fills this knowledge gap by synthesizing the data collected since the post-war period, including a large part of the grey literature. France presents a wide variety of surface waters, benefiting from a reduction in pollution and a growing population with an emphasis on leisure activities and on locally sourced food products. Despite this favorable geographical, ecological and human situation, French freshwater fisheries have been in decline since the mid-1970s with a chronically negative trade balance for aquatic products. During this period, numbers of commercial fishers have decreased three-fold due to their affiliation to an agricultural status, and to their dependence on migratory species such as eel, shad and lamprey, which are all in decline. Simultaneously, numbers of anglers have also seen a slow but continuous decline, cushioned somewhat in the last 10 years thanks to the creation of sub-annual fishing cards and the expansion of the total to include the younger classes. Vestiges of a non-commercial fishery, similar to recreational subsistence fishing and employing gear such as dip nets, traps, long lines or even gillnets, have been maintained in a much reduced state around large rivers as well as in the marshes and estuaries of the Atlantic coast. In this detailed study of these different categories of fishing practices in the mid-2010s, we estimate numbers of fishers at 2 million active anglers, 4000 subsistence fishers, and 400 commercial fishers. Their catches are roughly 7600, 200 and 1200 tonnes/year, respectively, for a total of 9000 tonnes/year. The major part of the overall economic worth, estimated at 980, 000 K€, is attributable to recreational fishers (anglers).
    Keywords: Inland Fisheries, Commercial fisheries, Recreational fisheries, Subsistence fisheries, Angler, Fishing effort, Catches, Economic importance
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04244953&r=agr
  9. By: Hernández, Karla; Madeira, Carlos
    Abstract: Using region-industry panel data for Chile over the period 1985 to 2017, we find no effect of precipitation changes on GDP and a negative impact of higher summer temperatures on Agriculture-Silviculture and Fishing. An increase of one Celsius degree in the month of January implies a 3% and 12% GDP reduction in Agriculture and Fishing, respectively. There is also a negative effect of higher temperatures in January on Construction and Electricity, Gas, and Water. Our analysis suggests that climate change did not have a big impact on the Chilean economy during this period. Stress test exercises that select only the negative and statistically significant coefficients imply that the Chilean GDP would fall between -14.8% and -9% in 2050 and between -29.6% and -16.8% in 2100, according to our model.
    Keywords: climate change; economic damages from climate change; economic growth; global warming; Chile; Latin America
    JEL: O44 O54 Q51 Q59 R11
    Date: 2021–12
    URL: http://d.repec.org/n?u=RePEc:pra:mprapa:118973&r=agr
  10. By: Ronald Mpofu; Charles Chavunduka; Innocent Chirisa
    Abstract: Rural land value is variegated, spanning from spiritual to economic value. Despite a diverse value perception of land by differing people, the aspect of land management remains constant. Effective rural land management continues to be a necessary and innovative stimulant of land value in the face of increasing population and competing land uses. Using document analysis, this article seeks to unravel Zimbabwe’s rural land management system and its impact on land value as an economic concept. It is the argument of this paper that the management of rural land is sporadic, asymmetrical, ineffective and inefficient to the detriment of its economic capabilities. Its valuation framework is unstructured and almost undefined. This article also shows that Zimbabwean rural land management and valuation policies have deprived the land of its potential. It further recommends a rural land management model consolidating scattered land laws and adopting international best practice recommendations.
    Keywords: Land management; land valuation; Rural land
    JEL: R3
    Date: 2023–01–01
    URL: http://d.repec.org/n?u=RePEc:afr:wpaper:afres2023-007&r=agr
  11. By: Gilles Grolleau (ESSCA School of Management, Lyon); Naoufel Mzoughi (ECODEVELOPPEMENT - Unité de recherche d'Écodéveloppement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Qurat-Ul-Ain Talpur (ESSCA School of Management, France)
    Abstract: While conventional analyses of farm hospitality upsides and downsides exist, the emotional labour requirements of such service-intensive activity are frequently overlooked. Ignoring this emotional component and its consequences (e.g. identity loss vs. reinforcement, emotional harmony) can explain project fates. By applying emotional labour to farm-based hospitality, we draw new insights. Farmers can benefit from guests' emotional support and become ‘makers' rather than ‘takers' of emotional rules. From a policy perspective, increasing the farmers' emotional literacy can facilitate a better match between their characteristics and agritourism projects.
    Keywords: agritourism, diversification, emotional labour, farm-based hospitality, farmers, local markets.
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04240587&r=agr
  12. By: Maggie Isaacson; Hannah Rubinton
    Abstract: Fluctuating incomes can mean families lose and then regain eligibility for food stamps multiple times during a period of years. Could that help explain why some eligible families don’t apply for the benefit?
    Keywords: Food stamps
    Date: 2022–09–20
    URL: http://d.repec.org/n?u=RePEc:fip:l00001:94831&r=agr
  13. By: Mukashov, Askar; Thurlow, James
    Abstract: This study investigates regional development and internal migration dynamics within the context of modern structural transformation in Sub-Saharan Africa. We develop a regionalized Computable General Equilibrium model that incorporates regionalized production, endogenous interregional migration, and distinct migrant households. Using this model, we simulate the structural transformation of Senegal as a case study. Our findings demonstrate that agricultural stagnation, exacerbated by global climate change, underlies the economic underperformance of rural regions and amplifies regional income disparities. Furthermore, our analysis shows that outmigration from stagnating rural provinces to a more developed capital region positively influences overall economic growth and mitigates regional income inequality. Nevertheless, these effects are limited, and a proactive approach to addressing income inequality across the nation's regions would require supporting agriculture, as it represents a more equitable policy than promoting nonagricultural sectors in both rural and capital regions.
    Keywords: structural transformation, CGE modeling, deagrarianization, internal migration, regional development
    JEL: D58 C68 Q54 O18
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:zbw:ifwkwp:279540&r=agr
  14. By: Tamas Somogyi (Óbuda University [Budapest]); Rudolf Nagy (Óbuda University [Budapest])
    Abstract: Global warming is one of the hottest topics today, impacting every aspect of our life on Earth. Surprisingly, the effects of climate change on critical infrastructure protection have not been studied extensively. This paper i) examines three challenges raised by heatwaves: managing environmental risks; failure of partners and supply chains caused by extreme weather; operation during heatwaves, and ii) gives an overview of the responses of the European financial sector. By contributing to the growing research area of global warming, this study provides an opportunity to understand some of the climate risks better and offers some insights into the climate strategy of the European banking industry. Research data is drawn from two primary sources. Relevant literature was explored, and current supervisory recommendations were examined along with the results of the European financial sector's first climate risk stress test.
    Keywords: European Central Bank, banking industry, critical infrastructure protection, heat waves, Global warming
    Date: 2022–12–30
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04242910&r=agr
  15. By: Picard, Julien; Banerjee, Sanchayan
    Abstract: Fighting the climate crisis requires changing many aspects of our consumption habits. Previous studies show that a first climate-friendly action can lead to another. Does deciding not to eat meat increase our willingness to do more for the environment? Can encouraging vegetarianism alter this willingness? Using an online randomised control trial, we study the side effects of a social norm nudge promoting vegetarianism on environmental donations. We develop an experimental design to estimate these side effects and a utility maximisation framework to understand their mechanisms. Using an instrumental variable, we find that choosing not to eat meat increases donations to pro-environmental charities. We use machine learning to find that the social norm nudge crowds out donations from the population segment prone to choosing vegetarian food after seeing the nudge. However, the nudge led another group to make less carbon-intensive food choices without affecting their donations. Our results suggest that whilst social norm nudges are effective on specific population segments, they can also reduce the willingness of some groups to do more.
    Keywords: social norm; meat; climate change; behavioural spillovers; side effects
    JEL: C30 C93 D91 Z10
    Date: 2023–09–13
    URL: http://d.repec.org/n?u=RePEc:ehl:lserod:120566&r=agr
  16. By: Pierre M. Picard (DEM, Université du Luxembourg); Harris Selod (The World Bank)
    Abstract: We propose an urban land use model to discuss the conversion of customary agricultural land to formal and informal residential land in a developing country city. Because customary land sales are insecure, migrant buyers face a risk of eviction, which affects land markets in non-trivial ways. Both tenure risk and asymmetric information cause the city extent and population to be too small. Empirical tests of the model for Bamako, Mali, confirm the existence of tenure insecurity and information asymmetry in the primary but not in the secondary land market, consistently with information revelation after initial sales by customary holders.
    Keywords: Urbanization, Land Markets, Property Rights, Land Tenure Formalization, Market Failure.
    JEL: O12 R14 P14
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:luc:wpaper:23-09&r=agr
  17. By: Kuhlmann, Katrin; Nalinya, Adron Naggayi; Francis, Tara; Spielman, David J.
    Abstract: An enabling environment with clear, inclusive, and transparent seed laws, policies, regulations, and guidelines is the foundation for an efficient and effective seed sector. If well designed and implemented, the legal and regulatory framework can facilitate market diversification, supervision and quality control of seed and other forms of planting material, promotion of private sector participation, farmer access to improved seed varieties, reduced barriers for the movement of seeds across borders, and food security. This study uses Regulatory Systems Maps (RSMs), a mapping tool for legal and regulatory processes and procedures, as a primary comparative method to assess the progress and dynamics in Uganda’s seed system along four key dimensions of the seed systems regulatory value chain: (i) early generation seed (EGS) production and distribution, (ii) varietal registration and release processes, (iii) seed quality assurance systems, and (iv) seed trade. The RSMs document and illustrate the processes and procedures contained in Uganda’s seed legal and regulatory systems, analytically isolating intervention points, proposed legal and regulatory changes, good practices and legal innovations, and systemic shifts over time, while also integrating important dimensions such as gender, inclusion, and flexibility that can address farmers’ needs, reduce costs, and increase participation in seed systems. The data and information used to compile the Uganda RSMs were developed and validated through a series of consultations with an array of stakeholders spanning both the public and private sectors. The findings of the RSMs showed that, despite the comprehensive nature of Uganda’s seed rules and regulations and some notable innovations, implementation is a persistent challenge, and regulatory gaps and inconsistencies continue to exist. The RSMs indicate the need to take various measures to improve the enabling environment for seed trade in Uganda, including reviewing the current seed law, which is largely outdated; updating the existing seed regulations; adopting plant variety protection (PVP) regulations to implement the PVP Act; developing guidelines on agricultural research; and building capacity in both the public and private sectors.
    Keywords: UGANDA; EAST AFRICA; AFRICA SOUTH OF SAHARA; AFRICA; agriculture; diversification; seeds; seed production; value chains; Regulatory Systems Maps (RSMs)
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:fpr:ifprid:2200&r=agr
  18. By: Jappe, Arlette
    Abstract: Research on research policy is often characterized by heavily normative notions of development and progress, as in contemporary discourse about societal challenges and sustainability transformations. When these normative concepts are simultaneously used as descriptive terminology for empirical changes in society, they become problematic for social science. This paper explores how insights from historical institutionalism can be applied to achieve a stricter separation between the analysis of institutional change and contemporary policy discourse. The material for this study are two contrasting cases of merger reforms of public sector research institutes with universities. In the Netherlands, the former governmental Agricultural Research Service was merged with Wageningen University in 1997-1998. In Denmark, several former governmental research institutes were merged with Aarhus University and Technical University of Denmark in 2007. The reforms exemplify changing conceptions of societal impact of research. The information on each case is taken from prior literature and analyzed in a historical institutionalist comparative framework. In particular, the concept of “political development”, defined by Karen Orren and Stephen Skowronek as “enduring shifts in government authority” is applied to define the observable event of change in each case. It is then analyzed how these reforms were politically achieved (“intercurrence of political institutions”), what were the respective policy objectives and how they were framed (“policy discourse”), to what extent they resulted in continuity or discontinuity of governmental research (“institutional change”), and what were institutional implications for later research policies in each case (“institutional platform for political action”). The paper aims to show how a more temporal, developmental understanding of institutions in real-world polities could help us to reflect better about relevant institutional change from the perspective of particular policy objectives.
    Date: 2023–10–30
    URL: http://d.repec.org/n?u=RePEc:osf:socarx:35kfa&r=agr
  19. By: Céline Bonnet (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Zohra Bouamra-Mechemache (TSE-R - Toulouse School of Economics - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - EHESS - École des hautes études en sciences sociales - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Hugo Molina (AgroParisTech)
    Abstract: We develop a bilateral oligopoly framework with manufacturer-retailer bargaining to analyze the impact of retail mergers on market outcomes. We show that the surplus division between manufacturers and retailers depends on three bargaining forces and can be interpreted in terms of "equilibrium of fear". We estimate our framework in the French soft drink industry and find that retailers have a higher bargaining power than manufacturers. Using counterfactual simulations, we highlight that retail mergers increase retailers' fear of disagreement which weakens their bargaining power vis-à-vis soft drink manufacturers and leads to higher wholesale and retail prices.
    Keywords: Bilateral oligopoly, Bargaining, Retail mergers, Soft drink industry
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-03375907&r=agr
  20. By: Marcel Byron Onditi
    Abstract: Property taxes, notably land rent, are crucial revenue sources particularly in third-world countries. Land rent is determined by factors like location and market forces and is governed in Kenya by the Land Act No. 6 of 2012. Manual valuation methods have led to inconsistencies, inefficiencies, and corruption. Many countries have adopted the Automated Valuation System (AVS), which lowers costs, enhances efficiency, ensures transparency, and boosts revenue collection. However, the adoption of AVS in developing nations remains largely uncharted in literature. The study seeks to fill this gap by scrutinizing various Automated Valuation Models (AVMs) for land rent taxation in Nairobi City County using data from the years 2020 to 2023. These datasets l existing land rents, property values, zoning ordinances, and public facilities’ locations. The research will use a case study of Nairobi City County, utilizing a cross-sectional quantitative research design and stratified random sampling considering the 20 zones in Nairobi as strata. The study will employ tools like ArcGIS Pro and R Statistic, the research will utilize techniques from multiple regression to Artificial Neural Networks to create prediction models for land rent. After assessing each model's accuracy, the most effective will be recommended for Kenya's use.
    Keywords: Automated Valuation Models; Land Rent Taxation; Prediction Models
    JEL: R3
    Date: 2023–01–01
    URL: http://d.repec.org/n?u=RePEc:afr:wpaper:afres2023-044&r=agr
  21. By: Katarzyna Reyman; Gunther Maier
    Abstract: The system of property right, the way it is organised, protected and executed affects the land development process and the timing of land development. Real options literature that explains impact of additional uncertainties connected with organisation of property right system on timing of land development concerns mostly western countries. Poland and other CEEC (Central and Eastern European Countries) have some unique issues concerning ownership right system that come from post-war, communists, and transition times (previous owners, specific property titles derived from a communist era, reprivatisation, communalisation, etc.). Ownership right is perceived as a very strong right by society, what results from long time of collective ownership, and have some implications on executing property rights. Thus, this paper explains on an example of Poland, CEEC specific property right issues and analyses how it can affect the timing of land development basing on western solutions from real option theory. The importance of topic: The topic is important because land markets are strongly influenced by institutions which may vary even in countries with the same economic and political systems like unified EU countries. Therefore, it is essential to understand past historical influence and societal background that have an effect on those institutions. Design/methodology/approach: secondary literature review, desk based study, qualitative institutional analysis
    Keywords: CEEC; property rights regime; Real option theory; the timing of land development
    JEL: R3
    Date: 2023–01–01
    URL: http://d.repec.org/n?u=RePEc:arz:wpaper:eres2023_230&r=agr
  22. By: Matthew J. Baker; Jonathan Conning
    Abstract: Historians and political economists have long debated the processes that led land in frontier regions, managed commons, and a variety of customary landholding regimes to be enclosed and transformed into more exclusive forms of private property. Using the framework of aggregative games, we examine land-holding regimes where access to land is established via possession and use, and then explore the factors that may initiate decentralized privatization processes. Factors including population density, potential for technology improvement, enclosure costs, shifts in group cohesion and bargaining power, or the policy and institutional environment determine the equilibrium mix of property regimes. While decentralized processes yield efficient enclosure and technological transformation in some circumstances, in others, the outcomes fall short of second-best. This stems from the interaction of different spillover effects, leading to inefficiently low rates of enclosure and technological transformation in some cases and excessive enclosure in others. Implementing policies to strengthen customary governance, compensate displaced stakeholders, or subsidize/tax enclosure can realign incentives. However, addressing one market failure while overlooking others can worsen outcomes. Our analysis offers a unified framework for evaluating claimed mechanisms and processes across Neoclassical, neo-institutional, and Marxian interpretations of enclosure processes.
    Date: 2023–11
    URL: http://d.repec.org/n?u=RePEc:arx:papers:2311.01592&r=agr
  23. By: Valérie Angeon (ECODEVELOPPEMENT - Unité de recherche d'Écodéveloppement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Sandrine Fréguin-Gresh (Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement)
    Abstract: Cet article s'intéresse au processus de mise sur agenda d'un modèle agri-alimentaire alternatif en Guadeloupe. Il montre comment le modèle agri-alimentaire véhiculé par les petites agricultures familiales a émergé comme problème public. En particulier, il analyse comment ce modèle a été le moteur de mobilisations, de médiatisation et d'une politisation récente. À partir d'enquêtes auprès d'acteurs locaux, complétées par une revue d'articles de presse et de littérature grise, l'article décrit le processus de mise sur agenda de ce modèle alternatif et interroge l'existence d'une fenêtre d'opportunité politique qui n'a pas (encore) abouti au changement. Mots clés : petites agricultures familiales, politiques publiques, mise sur agenda, modèles agrialimentaires.
    Keywords: petites agricultures familiales politiques publiques mise sur agenda modèles agri-alimentaires, petites agricultures familiales, politiques publiques, mise sur agenda, modèles agri-alimentaires
    Date: 2023–09–30
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04241896&r=agr
  24. By: Sara Mercandalli (UMR ART-Dev - Acteurs, Ressources et Territoires dans le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - UPVM - Université Paul-Valéry - Montpellier 3 - UPVD - Université de Perpignan Via Domitia - CNRS - Centre National de la Recherche Scientifique - UM - Université de Montpellier); Pierre Girard (UMR ART-Dev - Acteurs, Ressources et Territoires dans le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - UPVM - Université Paul-Valéry - Montpellier 3 - UPVD - Université de Perpignan Via Domitia - CNRS - Centre National de la Recherche Scientifique - UM - Université de Montpellier); Bécaye Dione (UMR ART-Dev - Acteurs, Ressources et Territoires dans le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - UPVM - Université Paul-Valéry - Montpellier 3 - UPVD - Université de Perpignan Via Domitia - CNRS - Centre National de la Recherche Scientifique - UM - Université de Montpellier); Sandrine Michel (UMR ART-Dev - Acteurs, Ressources et Territoires dans le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - UPVM - Université Paul-Valéry - Montpellier 3 - UPVD - Université de Perpignan Via Domitia - CNRS - Centre National de la Recherche Scientifique - UM - Université de Montpellier)
    Abstract: In Sub-Saharan Africa, unprecedented population growth, concomitant with limited industrialisation and job creation, have changed the configurations of rural-urban linkages in recent decades. Indeed, as primate cities do not act as strong engines of growth, territorial dynamics are rapidly being reshaped by renewed flows of people, goods, services and information within and between economic sectors, and between rural and urban areas. Rural densification and the fast expansion of small and medium-sized cities is one manifestation of these changes. As a result of silo thinking about rural and urban in most national strategies, plus the widespread informal economy and limited available statistics in the region, these new rural-urban linkages and their contribution to socioeconomic dynamics remain underexplored. Contributing to fill this gap, the aim of this paper is to present and test a method to assess rural-urban linkages and their possible role in territorial development in southern countries. We use a holistic approach and adopt an original posture, taking rural areas as the point of reference. Our method sets proxy indicators for specific information that is missing on rural-urban linkages. These indicators are then used to build a typology of territories according to potential rural-urban linkages, using a multivariate analysis and clustering. When applied to the case of Zimbabwe, the results reveal three types of districts, which differ in terms of the nature, intensity, direction and potential of rural-urban linkages for territorial development. We discuss the method's suitability in a diagnostic phase and how it could feed strategic thinking to mainstream rural-urban linkages in territorial development actions.
    Keywords: rural-urban linkages, assessment, small and medium-sized cities, territorial development, Zimbabwe
    Date: 2023
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04161783&r=agr
  25. By: Baptiste Parent (AgroParisTech, Université Paris-Saclay, CIRED - Centre International de Recherche sur l'Environnement et le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École des Ponts ParisTech - Université Paris-Saclay - CNRS - Centre National de la Recherche Scientifique); Lauriane Mouysset (CIRED - Centre International de Recherche sur l'Environnement et le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École des Ponts ParisTech - Université Paris-Saclay - CNRS - Centre National de la Recherche Scientifique, CNRS - Centre National de la Recherche Scientifique); Antoine Missemer (CNRS - Centre National de la Recherche Scientifique, CIRED - Centre International de Recherche sur l'Environnement et le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École des Ponts ParisTech - Université Paris-Saclay - CNRS - Centre National de la Recherche Scientifique); Harold Levrel (AgroParisTech, CIRED - Centre International de Recherche sur l'Environnement et le Développement - Cirad - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - EHESS - École des hautes études en sciences sociales - AgroParisTech - ENPC - École des Ponts ParisTech - Université Paris-Saclay - CNRS - Centre National de la Recherche Scientifique, Université Paris-Saclay)
    Abstract: Environmental and natural resource economics lies inherently at the interface between economic and natural dynamics (e.g., geological constraints, climate change, biodiversity evolution). Building models in that field often means building integrated models, calling on knowledge and methods from economics and physics, climatology, biology, or ecology. Howard Scott Gordon's 1954 article on fishery economics is considered to be seminal in the history of bioeconomic modeling, integrating biological and economic variables in a microeconomic model. Yet the precise role played by biology in Gordon's initial work remains unclear. On the basis of archival material and thorough analysis of Gordon's early research, this paper examines Gordon's model building and his persistent oscillation between two objectives-the production of a heuristic economic model with standard assumptions, and the conception of a predictive policy tool relevant from a fishery-biology
    Keywords: Integrated Model, interdisciplinarity, Fishery Economics, History of Economics
    Date: 2023–08–16
    URL: http://d.repec.org/n?u=RePEc:hal:journl:hal-04250105&r=agr
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