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on Project, Program and Portfolio Management |
| By: | Yan, Wenshou; Wang, Ruoxuan; Huang, Kaixing |
| Abstract: | Large-scale hydropower dams are among the most costly and controversial infrastructure projects, yet credible evidence on their regional economic impacts is scarce. This paper provides the first quasi-experimental estimate of the impact of the Three Gorges Project—the world’s largest dam—on regional economic growth. Using a difference-in-differences design with county level data, we find that the project raised GDP per capita in directly affected counties (which account for 11.6% of China’s GDP) by 9.1%. These gains were driven by improved navigation and trade, industrial land creation, and a moderated local climate—not merely by increased electricity supply. The project has also significantly accelerated the economic shift from agriculture to industry and services. However, the benefits were starkly unequal: downstream counties saw a 13.8% increase, while upstream counties experienced negligible gains, a divergence explained by asymmetric changes in land avail able for development. A cost-benefit analysis shows that considering only direct power revenues yields a negative return (-65.5%), but incorporating regional growth spillovers reveals a strongly positive return of 322.3%. Our findings demonstrate that the economic justification for mega-dams hinges on their indirect growth effects, which are large but spatially concentrated. |
| Keywords: | Mega-dams, Regional economic growth, Spatial heterogeneity, Cost-benefit analysis |
| JEL: | O13 O18 O53 Q25 |
| Date: | 2025 |
| URL: | https://d.repec.org/n?u=RePEc:pra:mprapa:127196 |
| By: | López, Axsell |
| Abstract: | This study assesses the relative technical efficiency of investment projects financed by the Central American Bank for Economic Integration (CABEI) over the period 2010-2024, evaluating their capacity to transform financial resources into development outcomes. A two-stage approach is applied, combining Data Envelopment Analysis (DEA) with bias correction via bootstrap and a censored regression model to examine efficiency determinants. The results indicate an average technical efficiency of 35%, with substantial heterogeneity across projects, countries, and sectors. The benchmarking analysis identifies a limited set of projects defining the efficient frontier. Moreover, efficiency is associated with both microeconomic factors related to project design and implementation and macroeconomic conditions in recipient countries. |
| Keywords: | Data Envelopment Analysis, CABEI, Technical Efficiency, Investment Projects, Tobit. |
| JEL: | C13 C14 C61 H43 O22 O54 |
| Date: | 2026–01–21 |
| URL: | https://d.repec.org/n?u=RePEc:pra:mprapa:127812 |
| By: | Bell, Peter |
| Abstract: | As governments around the world pursue policies to incentivize the construction of new mining projects, they need to recognize that private industry today is not pursuing opportunities at abandoned old mines. Government leadership could increase remediation of old mines by changing the rules, a move that would require coordination across diverse stakeholders. Fixing these old problems could help reduce unresolved sources of pollution and public perception that mining is environmentally irresponsible. This paper discusses fundamental aspects of abandoned mines and compares government policies by examining two small Canadian mining exploration companies advancing remediation projects in Italy and Canada. |
| Keywords: | Mining, Pollution, Environment, Remediation, Canada, Italy, Government, |
| JEL: | A1 B4 B5 D2 D6 D62 E6 E61 F6 F64 G3 H1 H2 H23 H5 H56 H57 H8 H82 K2 K23 L5 L7 O1 O13 O2 P1 P16 Q3 Q32 Q33 |
| Date: | 2025–11–21 |
| URL: | https://d.repec.org/n?u=RePEc:pra:mprapa:126948 |
| By: | Christopher Forsyth; Levi M. Larsen; Ryan Spangler; Chandu Bolisetti; Jason Hansen; Botros Hanna; Abdalla Abou-Jaoude; Jia Zhou; Koroush Shirvan |
| Abstract: | This study introduces a novel framework to model cost overruns associated with four key stakeholders in nuclear power plant construction: equipment suppliers, construction subcontractors, the design and management team, and creditors. The framework estimates the share of overruns caused by each stakeholder and the share of overruns they receive as payment. The results show that the share of cost overruns a given stakeholder causes and the share of overruns they receive as payment are often starkly different, which can lead to profit misallocations and litigation between parties, further exacerbating overruns. The magnitude of these potential profit misallocations is examined under three common contract structures - fixed-price, cost-plus, and performance-based - revealing the advantages and disadvantages of each framework for aligning stakeholder incentives. Regardless of the contract type chosen, strong owner involvement is crucial for project success, and the study concludes with specific recommendations for project owners seeking to minimize cost overruns. |
| Date: | 2026–01 |
| URL: | https://d.repec.org/n?u=RePEc:arx:papers:2601.14558 |
| By: | Anaïs Garin (IRG - Institut de Recherche en Gestion - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12 - Université Gustave Eiffel); Mathias Béjean (IRG - Institut de Recherche en Gestion - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12 - Université Gustave Eiffel); Stefan Meisiek (The University of Sydney Business School); Willy Allègre (CMRRF - Centre Mutualiste de Rééducation et de Réadaptation Fonctionnelles de KERPAPE [Ploemeur] - Centre Mutualiste de Rééducation et de Réadaptation Fonctionnelles de Kerpape) |
| Abstract: | Recently, scholars have explored hybrid value creation at the ecosystem level, in which social and economic value is created collectively by ecosystem actors. While scholars extensively investigated hybridity at the organizational level, for example, in social enterprises, they have seldomly explored it in ecosystems. Yet, understanding how ecosystem actors achieve hybridity collectively is important to support further global actions for tackling grand challenges, which require collective action by diverse actors. Hence, this research builds on a case study of a social innovation ecosystem in the French disability sector to reveal how ecosystem actors manage and maintain such collective hybridity. We find that actors develop a dual management structure in which they achieve both social impact and profitability. Such duality supports the development of cross-interest collaborations and mutual control between actors, hence maintaining a careful balance between social impact and profitability. This research contributes to the ecosystem management literature by investigating collective hybridity management in an ecosystem. It also contributes to a better understanding of social innovation ecosystems, an emerging concept in the ecosystem literature. Finally, we suggest opportunities for future research and identify implications for practitioners and policymakers to address grand challenges through collective hybridity. |
| Keywords: | collective hybridity, profitability, social values, Social innovation ecosystems |
| Date: | 2025–06–11 |
| URL: | https://d.repec.org/n?u=RePEc:hal:journl:hal-05453544 |
| By: | Mikl\'os Koren; G\'abor B\'ek\'es; Julian Hinz; Aaron Lohmann |
| Abstract: | Generative AI is changing how software is produced and used. In vibe coding, an AI agent builds software by selecting and assembling open-source software (OSS), often without users directly reading documentation, reporting bugs, or otherwise engaging with maintainers. We study the equilibrium effects of vibe coding on the OSS ecosystem. We develop a model with endogenous entry and heterogeneous project quality in which OSS is a scalable input into producing more software. Users choose whether to use OSS directly or through vibe coding. Vibe coding raises productivity by lowering the cost of using and building on existing code, but it also weakens the user engagement through which many maintainers earn returns. When OSS is monetized only through direct user engagement, greater adoption of vibe coding lowers entry and sharing, reduces the availability and quality of OSS, and reduces welfare despite higher productivity. Sustaining OSS at its current scale under widespread vibe coding requires major changes in how maintainers are paid. |
| Date: | 2026–01 |
| URL: | https://d.repec.org/n?u=RePEc:arx:papers:2601.15494 |
| By: | Aziz Bentaleb (FSJES - Faculté des Sciences Juridiques, Economique et Sociales de Mohammedia - UH2C - Université Hassan II de Casablanca = University of Hassan II Casablanca = جامعة الحسن الثاني (ar)); Naima Aba (FSJES - Faculté des Sciences Juridiques, Economique et Sociales de Mohammedia - UH2C - Université Hassan II de Casablanca = University of Hassan II Casablanca = جامعة الحسن الثاني (ar)) |
| Abstract: | The internal audit function plays a crucial role in improving the management of both public and private organizations by ensuring the control of risks inherent in their activities. It operates through assurance and advisory missions. In the healthcare sector, and more specifically within the Ibn Sina University Hospital Center, internal auditing has significantly contributed to improving the Center's management. Its advisory role has also supported managers in various files and projects. However, certain constraints still limit its effectiveness as a decisionmaking support tool. The ongoing transformations in public management and the reforms underway in the healthcare sector necessitate strengthening the role of internal auditing to accompany and anticipate these changes. |
| Abstract: | La fonction d'audit interne joue un rôle crucial dans l'amélioration de la gestion des organisations, tant publiques que privées, en veillant à la maîtrise des risques inhérents à leurs activités. Elle s'exerce à travers des missions d'assurance et de conseil. Dans le secteur de la santé, et plus spécifiquement au sein du Centre Hospitalo-Universitaire Ibn Sina, l'audit interne a contribué de manière significative à l'amélioration de la gestion du Centre. Son activité de conseil a également permis l'accompagnement des gestionnaires dans de nombreux dossiers et projets. Cependant, certaines contraintes limitent encore son efficacité en tant qu'outil d'aide à la prise de décision. Les mutations que traverse la gestion publique et les réformes en cours dans le secteur de la santé rendent nécessaire un renforcement du rôle de l'audit interne pour accompagner et anticiper ces évolutions. |
| Keywords: | Internal audit, management improvement, healthcare institution, performance, perspectives, établissement de santé, performances, amélioration de la gestion, Audit interne |
| Date: | 2024–10–20 |
| URL: | https://d.repec.org/n?u=RePEc:hal:journl:hal-05320119 |