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on Macroeconomics |
| By: | Chao Gu; Janet Hua Jiang; Liang Wang |
| Abstract: | We construct a New Monetarist model with labor market search and identify two channels that affect the long-term relationship between inflation and unemployment. First, inflation lowers wages through bargaining because unemployed workers rely more heavily on cash transactions and suffer more from inflation than employed workers: this wage-bargaining channel generates a downward Phillips curve without assuming nominal rigidity. Second, inflation increases the firm’s financing costs, which discourages job creation and increases unemployment; this cash-financing channel leads to an upward-sloping Phillips curve. We calibrate our model to the U.S. economy. The improvement in firm financing conditions can explain the observation that the slope of the long-run Phillips curve has switched from positive to negative post-2000. |
| Keywords: | Business fluctuations and cycles; Credit and credit aggregates; Inflation and prices; Labour markets |
| JEL: | E24 E31 E44 E51 |
| Date: | 2025–09 |
| URL: | https://d.repec.org/n?u=RePEc:bca:bocawp:25-26 |
| By: | Zheng Gong |
| Abstract: | I establish the existence of a distributionally neutral benchmark for aggregate shock transmission in incomplete-market heterogeneous-agent (HA) economies, where all agents are equally exposed to the shock. In this benchmark, aggregates satisfy the equilibrium conditions of a fictitious representative-agent (RA) economy. Leveraging this result, I develop a tractable framework to identify and quantify redistribution mechanisms that drive the divergence between HA and RA outcomes. The framework (i) uncovers the mapping from deep structural parameters to redistribution and (quantitatively) to general-equilibrium dynamics; (ii) clarifies the roles of fiscal policy and investment; (iii) provides rescalable sufficient statistics portable across shock types; and (iv) identifies new redistribution channels in two-asset HANK and overlapping generation models. |
| Keywords: | Heterogeneous households; Monetary Policy; Fiscal Policy; Incomplete markets; Inequality; Business cycles. |
| JEL: | D31 E21 E43 E52 E62 |
| Date: | 2025–01 |
| URL: | https://d.repec.org/n?u=RePEc:bon:boncrc:crctr224_2025_624v2 |
| By: | Giacomo Mangiante; Pascal Meichtry |
| Abstract: | This paper investigates the distributional effects of conventional monetary policy and forward guidance. Using a structural VAR model, we estimate their impact on macroeconomic aggregates and consumption inequality in the United States. While aggregate real and financial variables respond similarly to both policy tools, their effects on consumption inequality diverge significantly. Conventional monetary policy shocks lead to countercyclical inequality, whereas forward guidance announcements result in a procyclical response, driven by heterogeneous reactions across the household spending distribution. We rationalize these contrasting outcomes both empirically and through a tractable New Keynesian model featuring household heterogeneity and government redistribution. In the model, a fiscal adjustment that differs in timing and magnitude induces a sharper decline in consumption among financially constrained households following conventional rate hikes but a more muted effect under forward guidance. These findings highlight the importance of accounting for the distributional consequences of different monetary policy tools and emphasize the critical role of fiscal policy in shaping inequality dynamics. |
| Keywords: | Household Heterogeneity, Forward Guidance, Inequality, Monetary Policy, Hand-to-Mouth, Fiscal Transfers |
| JEL: | D31 E21 E52 E58 E62 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:bfr:banfra:996 |
| By: | Mauro Sayar Ferreira (Cedeplar/UFMG); Berto Carvalho da Silva Jr (Caixa Econômica Federal) |
| Abstract: | There is no consensus on the size and significance of fiscal spending multipliers in Brazil, reflecting a broader debate in international literature. Different model specifications hinder comparisons across studies. We find that controlling for the monetary policy interest rate and a measure of sovereign risk leads to insignificant linear and state-dependent multipliers. However, excluding these covariates results in significant multipliers, albeit with a substantially poorer goodness-of-fit. The inclusion of sovereign risk markedly changes the conclusions. Our findings are robust across various robustness checks, including different estimates for the probability of being in a recessionary state and specifications normally used in the literature. Given the strong evidence of sovereign risk’s influence on the business cycle in emerging economies, particularly Brazil, its inclusion is essential for accurately studying fiscal multipliers. |
| Keywords: | Fiscal Policy, Fiscal Multiplier, Local Projection, State-Dependency, Sovereign Risk. |
| JEL: | E32 E62 H5 H62 H63 |
| Date: | 2025–09 |
| URL: | https://d.repec.org/n?u=RePEc:cdp:texdis:td684 |
| By: | Paula Patzelt |
| Abstract: | This paper identifies electricity supply shocks by exploiting the fact that variations in wind speed at turbine locations are exogenous with respect to macroeconomic outcomes and drive electricity prices in European wholesale markets inframarginally. Instrumenting electricity price changes with these wind supply shocks, I find that higher electricity prices raise inflation and reduce electricity use as expected, but generate surprising effects on economic activity. Unemployment rises, but industrial production also rises over time, and the effect on GDP is negligible. As these effects differ markedly from the impact of oil price shocks, they suggest that as economies shift from fossil fuels to renewable electricity, business cycle dynamics may persistently change. |
| Keywords: | business cycle, prices, energy supply, energy shocks, wind energy |
| JEL: | E31 E32 Q42 Q43 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:ces:ceswps:_12146 |
| By: | Francois-Michel Boire; Thibaut Duprey; Alexander Ueberfeldt |
| Abstract: | This paper studies how financial shocks shape the distribution of output growth by introducing a quantile-augmented vector autoregression (QAVAR), which integrates quantile regressions into a structural VAR framework. The QAVAR preserves standard shock identification while delivering flexible, nonparametric forecasts of conditional moments and tail risk measures for gross domestic product (GDP). Applying the model to financial conditions and credit spread shocks, we find that adverse financial shocks worsen the downside risk to GDP growth significantly, while the median and upper percentiles respond more moderately. This underscores the importance of nonlinearities and heterogeneous tail dynamics in assessing macro-financial risks. |
| Keywords: | Central bank research; Econometric and statistical methods; Financial markets; Financial stability; Monetary and financial indicators |
| JEL: | C32 C53 E32 E44 G01 |
| Date: | 2025–09 |
| URL: | https://d.repec.org/n?u=RePEc:bca:bocawp:25-25 |
| By: | Vaishali Garga; Edward P. Herbst; Alisdair McKay; Giovanni Nicolo; Matthias Paustian |
| Abstract: | We review the design and communication of monetary policy strategies that take into account risks and uncertainty. A key element in a robust monetary strategy is the concept of risk management, which is the weighing of key risks when setting policy. When risks to the outlook are balanced, the baseline outlook may be sufficient to guide policy decisions. However, risk-management considerations become important when risks are asymmetric. We discuss how robust simple interest rate rules and optimal control policy can incorporate risk-management considerations into the design of a monetary policy strategy. Alternative scenarios can illustrate salient risks and how monetary policy might respond if those risks were to materialize. However, using alternative scenarios in policy deliberations and communications requires important implementation choices. |
| Keywords: | Uncertainty; Risk management; Robust monetary policy strategies; Scenario analysis; Monetary policy communication |
| JEL: | E31 E32 E52 E58 |
| Date: | 2025–08–22 |
| URL: | https://d.repec.org/n?u=RePEc:fip:fedgfe:2025-74 |
| By: | Paul Hubert; Rose Portier |
| Abstract: | This paper establishes the asymmetric transmission of monetary policy to nominal yields of the four largest euro area countries. We document that the effect of easing monetary surprises is stronger than the effect of monetary tightening. The asymmetry holds beyond the nonlinearities related to the economic or financial environment and does not stem from information effects. We provide evidence that this asymmetry is driven by signals about the future policy path. Decomposing euro area interest rates between common and country-specific components, we show that the common component, likely capturing expectations of future short-term rates, generates the differentiated effects, while risk premium signals amplify the asymmetry. Using textual analysis to extract policymakers’ signals about the future monetary policy space from press conferences, we find that central bank communication can affect this asymmetric transmission to yields. Our results suggest a key role for the signaling channel in determining long-term interest rates. |
| Keywords: | Term Structure, Asymmetric Effects, Central Bank Communication, Signaling, Long-Term Interest Rates |
| JEL: | E43 E52 E58 G12 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:bfr:banfra:999 |
| By: | Andreas Fagereng; Luigi Guiso; Luigi Pistaferri; Marius A. K. Ring |
| Abstract: | We provide empirical evidence on the importance of a relatively understudied channel of insurance against labor income shocks: transfers from (cash-rich) parents to (cash-short) children when the latter experience negative wage shocks. Matching population data for Norway across two generations, we establish several results. First, parents make a transfer—i.e., run down liquid assets—when adult children experience negative labor income shocks. Consistent with dynastic insurance, we observe no transfers when income shocks are positive. Second, parents' responses depend on the nature of the shock. If losses are temporary, parents dissave; if they are persistent, parents save in order to make future transfers. Parental transfers offset 43% of temporary and 27% of persistent losses. Third, insurance is lower when children have other smoothing options, like spousal labor supply, and is greater for shocks to their own child versus a child’s spouse. Support also increases if the spouse’s parents can contribute, suggesting “competition for attention.” Lastly, insurance flows are one-way: children do not insure their parents against income losses. |
| JEL: | D31 E21 E24 G11 |
| Date: | 2025–09 |
| URL: | https://d.repec.org/n?u=RePEc:nbr:nberwo:34253 |
| By: | Julius Mattern; Christoph Meyer |
| Abstract: | As modern economies increasingly adopt digital and instant payments, ensuring the resilience of payment systems and maintaining public trust have become more critical. This paper extends the network and clustering approach of Glowka et al. (2025) to identify critical participants in real-time gross settlement (RTGS) systems - those whose failure could disrupt system continuity. Our extension incorporates three key dimensions: payment type (interbank vs. customer), intrayear temporal frequency, and transaction view (value vs. volume). With these dimensions, we derive an extensive set of granular criticality scenarios and weight each scenario result by its economic activity to reflect its operational relevance. Applying this method to transaction data from SIC, Switzerland's RTGS system, we find that, beyond large international banks, mid-sized domestic banks and, occasionally, financial market infrastructures also play critical roles, especially during periods of heightened economic activity and night-time settlement hours. These criticality results are consistent, although some participants feature more prominently in the volume-based view. Our findings provide system operators and regulators with complementary tools to meet the Principles for Financial Market Infrastructures (PFMI), enabling context-specific assessment of criticality in RTGS systems and informing realistic stress test scenarios amid a rapidly evolving payment landscape. |
| Keywords: | Payment system, Systemic risk, Settlement, Central bank, Customer payments |
| JEL: | E42 D62 E44 E58 G21 J33 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:snb:snbwpa:2025-14 |
| By: | Ervin, Paul; Gayoso, Lyliana; Rubiano Matulevich, Eliana Carolina |
| Abstract: | Floods are becoming more frequent and severe due to climate change, population growth, and land cover changes. In Paraguay, floods are the most common weather-related hazard and disproportionately impact poor and vulnerable populations. This study contributes to understanding household-level exposure to flood risk in Paraguay by combining geolocated household survey data with novel flood hazard maps. The study estimates that more than 23 percent of households are exposed to flood risk, with exposure varying by geography and household characteristics. Urban households living in poverty are among the most exposed, facing depths of flooding nearly four times higher than non-poor households, in smaller, more common flood events. The approach provides valuable insights for targeting flood risk reduction efforts and highlights the importance of considering socioeconomic vulnerability in disaster risk management. These findings underscore the multidimensional nature of vulnerability to flood risk, particularly in rapidly urbanizing areas, and the need for integrated urban planning and poverty reduction strategies to address flood risk disparities effectively, particularly in rapidly urbanizing areas. |
| Date: | 2025–09–15 |
| URL: | https://d.repec.org/n?u=RePEc:wbk:wbrwps:11215 |
| By: | Aneli Bongers (Department of Economics, University of Malaga); Jose L. Torres (Department of Economics, University of Malaga) |
| Abstract: | Computing the so-called Business-as-Usual (BaU) scenario in Integrated Assessment Models (IAMs) that include environmental externalities is a non-trivial task. Traditionally, general equilibrium growth models with such externalities are solved in a centralized framework, where a social planner maximizes welfare by fully internalizing the environmental damage. This is the approach taken in the well-known DICE model by Nordhaus (1992). However, in DICE, the BaU scenario is defined as the planner’s solution with zero abatement, even though the externality is already internalized through investment decisions to maximize social welfare. This creates a mismatch when comparing the BaU scenario to the true first-best allocation. This paper solves the DISE-2024 (Dynamic Integrated Space Economy) model in a decentralized economy, using a fixed point method to compute orbital debris trajectories under a laissez-faire setting, and compares them with the first-best optimal trajectories from a centralized economy. |
| Keywords: | Orbital debris; Satellites; Integrated assessment models; Business-as-Usual; Competitive decentralized equilibrium |
| JEL: | D62 E21 Q53 Q58 |
| Date: | 2025–09 |
| URL: | https://d.repec.org/n?u=RePEc:bhw:wpaper:08-2025 |
| By: | Edward L. Glaeser; Joseph Gyourko; Braydon Neiszner |
| Abstract: | Do more populous neighborhoods grow less quickly than less populous areas? Is local housing price growth associated with initial population density? The Longitudinal Tract Data Base’s (LTDB) panel of Census tracts is the standard tool for measuring neighborhood change. The LTDB is based on 2010 Census tract boundaries, and Census tracts are partially designed so that they have a similar level of population. In this paper, we show that defining neighborhoods to equalize ex post population levels can significantly impact estimated coefficients in regressions in which population changes are regressed on initial population levels or with variables that are correlated with initial population levels. Most obviously, if neighborhood populations are ex post equalized, then a regression of population change on initial population must yield a coefficient of -1. We address this challenge by offering five alternative panels of tracts using 1970, 1980 and 1990 boundaries, which can be thought of as ‘reverse LTDBs’. The significant mean reversion of both population and housing units that appear in the LTDB before 2000 either dramatically ameliorates or reverses using the reverse LTDB. Comparing the LTDB with the reverse LTDB also finds that using tracts based on ex post borders also can influence estimated growth relationships where other tract-level attributes such as house price are correlated with initial population levels. This does not imply that using ex ante borders always is superior; earlier borders almost always means fewer observations, especially in rapidly growing areas. |
| JEL: | R10 R12 R31 R38 |
| Date: | 2025–09 |
| URL: | https://d.repec.org/n?u=RePEc:nbr:nberwo:34238 |
| By: | Véronique Genre; Christophe Guette-Khiter; François Robin |
| Abstract: | Whereas the market value of listed companies can be observed directly using share prices, the vast majority of foreign direct investment (FDI) is in unlisted companies and can only be estimated based on book value. Valuing FDI at market prices reduces France’s net external borrowing position by EUR 200 billion. <p> Alors que la valeur de marché des entreprises cotées en bourse est accessible grâce aux cours des actions, la très grande majorité des investissements directs étrangers (IDE) sont réalisés dans des entreprises non cotées et ne sont estimés qu’à leur valeur comptable. La valorisation des IDE à leur prix de marché réduit de 200 milliards d’euros la position extérieure nette débitrice de la France. |
| Date: | 2025–05–23 |
| URL: | https://d.repec.org/n?u=RePEc:bfr:econot:404 |
| By: | Honeycutt, Sydney; Wyatt, Amanda; Lundy, Mark; Brouwer, Inge D. |
| Abstract: | From 2022-2024, the CGIAR Research Initiative on Sustainable Healthy Diets through Food Systems Transformation (SHiFT) combined high-quality nutritional and social science research with development and policy partnerships to generate innovative food systems solutions that contributed to sustainable healthy diets. Through a country-led approach, SHiFT supported the design and implementation of national food systems transformation activities in Viet Nam, Ethiopia, and Bangladesh, aiming to achieve sustainable healthy diets while also working toward improved livelihoods, gender equity, and social inclusion. Following the 2021 United Nations Food Systems Summit (UNFSS), countries were encouraged to define pathways for transforming their food systems to align with the 2030 Agenda and Sustainable Development Goals (SDGs).2 Many countries have since developed national action plans to operationalize these pathways, requiring coordinated multisectoral efforts. SHiFT contributed to this process by generating evidence and supporting national stakeholders in developing context-specific food systems solutions. This brief introduces SHiFT’s country engagement strategy and explains how SHiFT supported collaborative pathways and processes in each target country during its initial phase. Consumers and Food Environments, Area of Work 1 in the new CGIAR Science Program on Better Diets and Nutrition, will build upon the SHiFT approach starting in 2025 through 2030. |
| Keywords: | food systems; healthy diets; nutrition; sustainability; transformation; Vietnam; Ethiopia; Bangladesh; Asia; South-eastern Asia; Africa; Eastern Africa; Southern Asia; Sub-Saharan Africa |
| Date: | 2025–07–24 |
| URL: | https://d.repec.org/n?u=RePEc:fpr:cgiarp:175794 |
| By: | Thomas F Epper (LEM - Lille économie management - UMR 9221 - UA - Université d'Artois - UCL - Université catholique de Lille - Université de Lille - CNRS - Centre National de la Recherche Scientifique, IÉSEG School Of Management [Puteaux]); Ivan Mitrouchev (GAEL - Laboratoire d'Economie Appliquée de Grenoble - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - UGA - Université Grenoble Alpes - Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology - UGA - Université Grenoble Alpes) |
| Abstract: | Social preferences are widely studied in behavioral economics, with some validated survey modules to measure trust, altruism and reciprocity. Despite growing interest in inequality aversion-defined as an individual's dislike of disparities in outcomes-there is, however, no dedicated and validated module to assess this specific social preference. Moreover, inequality aversion and altruism are often hard to disentangle, which points to the need for a unified module that incorporates both preferences. To bridge these gaps, we introduce a novel survey module that captures general attitudes toward inequality aversion and altruism. This module was developed and validated through an experimental study with a representative U.S. population sample. Our results demonstrate that the proposed module effectively captures variations in both inequality aversion and altruism, with consistent reliability across individual heterogeneity. This tool offers researchers a standardized and generalizable approach for measuring inequality aversion and altruism, paving the way for future studies and across diverse contexts. |
| Abstract: | Les préférences sociales sont largement étudiées en économie comportementale, avec certains modules d'enquête validés pour mesurer la confiance, l'altruisme et la réciprocité. Malgré l'intérêt croissant pour l'aversion à l'inégalité, définie comme l'aversion d'un individu pour les disparités de résultats, il n'existe toutefois aucun module dédié et validé pour évaluer cette préférence sociale spécifique. De plus, l'aversion pour les inégalités et l'altruisme sont souvent difficiles à distinguer, ce qui souligne la nécessité d'un module unifié intégrant ces deux préférences. Pour combler ces lacunes, nous introduisons un nouveau module d'enquête qui permet de saisir les attitudes générales à l'égard de l'aversion pour les inégalités et de l'altruisme. Ce module a été développé et validé dans le cadre d'une étude expérimentale menée auprès d'un échantillon représentatif de la population américaine. Nos résultats démontrent que le module proposé capture efficacement les variations tant en matière d'aversion pour les inégalités que d'altruisme, avec une fiabilité constante malgré l'hétérogénéité des individus. Cet outil offre aux chercheurs une approche standardisée et généralisable pour mesurer l'aversion pour les inégalités et l'altruisme, ouvrant la voie à de futures études dans divers contextes. |
| Keywords: | Inequality, Altruism, Redistribution, Social preferences, Survey instrument |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:hal:journl:hal-05247375 |
| By: | Friederke Niepmann; Leslie Sheng Shen; Friederike Niepmann |
| Abstract: | How do banks respond to geopolitical risk, and is this response distinct from other macroeconomic risks? Using U.S. supervisory data and new geopolitical risk indices, we show that banks reduce cross-border lending to countries with elevated geopolitical risk but continue lending to those markets through foreign affiliates---unlike their response to other macro risks. Furthermore, banks reduce domestic lending when geopolitical risk rises abroad, especially when they operate foreign affiliates. A simple banking model in which geopolitical shocks feature expropriation risk can explain these findings: Foreign funding through affiliates limits downside losses, making affiliate divestment less attractive and amplifying domestic spillovers. |
| Keywords: | geopolitical risk, bank lending, credit risk, international spillovers |
| JEL: | F34 F36 G21 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:ces:ceswps:_12145 |
| By: | Hector Blanco; Noémie Sportiche |
| Abstract: | Prior research shows that restrictive zoning regulations are major drivers of rising housing costs and residential segregation in the United States. In response, a growing number of state and local governments are passing laws to allow for denser housing in strictly zoned localities, despite entrenched opposition from incumbent residents. This paper examines whether incumbent residents' responses undermine the success of these policies by studying new construction permitted under Massachusetts Chapter 40B; one of the longest-standing and most productive examples of a housing policy that bypasses local zoning laws. Exploiting hyperlocal variation in residents' proximity to new 40B buildings, we find that only a subset of larger 40B developments cause property values to decrease, and that this effect is both highly localized and only emerges in the longer term, many years after these developments are proposed. Focusing on these larger developments that are more likely to elicit resident reactions, we find that only a fraction of incumbent residents move out after their approval and that the magnitude of these migration responses is insufficient to undermine policymakers' desegregation goals. We also do not find evidence that incumbent residents become more politically active against future development, as they are no more likely to vote in local or general elections nor are they more likely to vote for repealing Chapter 40B after 40B developments are proposed near their homes. |
| Keywords: | zoning, housing prices, migration, political participation |
| JEL: | R52 R23 R28 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:ces:ceswps:_12140 |
| By: | Philippine Coeugnet (LISIS - Laboratoire Interdisciplinaire Sciences, Innovations, Sociétés - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Université Gustave Eiffel, GABI - Génétique Animale et Biologie Intégrative - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Julie Labatut (LISIS - Laboratoire Interdisciplinaire Sciences, Innovations, Sociétés - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Université Gustave Eiffel, GABI - Génétique Animale et Biologie Intégrative - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Michèle Tixier-Boichard (GABI - Génétique Animale et Biologie Intégrative - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Xavier X Rognon (GABI - Génétique Animale et Biologie Intégrative - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Sophie Allais (PEGASE - Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Rennes Angers - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Nicolas Bédère (PEGASE - Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Rennes Angers - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement); Isabelle Goldringer (GQE-Le Moulon - Génétique Quantitative et Evolution - Le Moulon (Génétique Végétale) - AgroParisTech - Université Paris-Saclay - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement); Gwendal Restoux (GABI - Génétique Animale et Biologie Intégrative - AgroParisTech - Université Paris-Saclay - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement) |
| Abstract: | The agroecological transition requires a better coupling of animal and plant productions to take advantage of reciprocal benefits. However, poultry farming is often disconnected from crop production at both farm and regional levels. Additionally, current breeds and varieties may struggle to adapt to the variable and heterogeneous environments often found in agroecological systems. Furthermore, the agroecological transition requires a shift in research practices, including the active engagement of non-scientific stakeholders to ensure effective field implementation. In this context, this study aimed to co-design agroecological systems integrating poultry with crops or fruit trees to enhance ecosystem services. The goal was to refine breeding objectives and optimize poultry sector organization in terms of feeding, genetics, and economics. To achieve this, we conducted semi-structured interviews with farmers across France who are experimenting with innovative practices in more integrated systems. Initial findings show that poultry-crop systems offer multiple benefits, including diversification, food autonomy, and biological pest control. However, they also present challenges, particularly due to unsuitable regulations and equipment. While farmers' satisfaction with current poultry genetics varies, all farmers seek greater independence from dominant industry players. Achieving this goal necessitates collaboration between, breeders, farmers and local stakeholders at the regional level. Building on this observation, we applied the DKCP (Define-Knowledge-Concept-Proposal) method to facilitate knowledge sharing and explore innovative ideas during a codesign process. This phase involved a group of organic farmers in the Massif Central, a mid-altitude region in central France. |
| Keywords: | Plant poultry systems, Participatory selection, Innovative design method, Poultry farming |
| Date: | 2025–08–25 |
| URL: | https://d.repec.org/n?u=RePEc:hal:journl:hal-05266781 |