Agglomeration bonuses (ABs) are payments conditional on the contiguity of landowners’ conservation areas. It is widely accepted that, by encouraging landowners to cooperate, ABs promote more cost-effective biodiversity conservation than instruments targeting landowners individually. This article challenges this conclusion by studying the impacts of different AB designs, some of which explicitly aim to enhance cooperation while others do not. Specifically, we study whether differentiating the bonuses between internal (within-landholding) and external (between-landholdings) boundaries affects AB cost-effectiveness. Using an economic-ecological model and game theory, our simulations on realistic landscapes show that differentiating the two bonuses (in favor of internal ones) generally increases AB cost-effectiveness. The two bonuses are indeed largely substitutable, with internal outperforming external bonuses. However, when the regulator’s budget is tight, external bonuses can complement internal ones at the margin. The complexity of compensation between plots belonging to different landholdings is a key element in explaining these patterns. Given this complexity, the most cost-effective schemes are characterized by little or no cooperation between landowners. Regarding policy, we conclude that differentiated ABs are cost-effective schemes that should be part of the regulators’ toolbox.
Bioenergies from dedicated crops or wood have faced substantial criticisms due to their significant land requirements. Certain bioenergy pathways, such as biogas generated from crop residues, manure, or food waste, appear to be exempt from this criticism. However, these feedstocks are byproducts of agricultural activities that generate emissions not covered by current climate policies in most countries.
Dans tous les domaines de nos vies et face aux nouvelles fractures (climatiques et écologiques, du travail ou de santé, numériques ?) mais aussi de façon plus philosophique voire politique, et en la reliant à quelques-unes des grandes notions de notre époque, cet ouvrage explore les potentiels et la modernité d’une idée dans toute la force de sa jeunesse : la mutualisation.
This paper studies the long-term consequences of a zero-growth regime on the evolution of employment and unemployment, depending on the assumptions we can make concerning the evolution of the working population, labor productivity and working hours. These consequences are examined through three scenarios. This leads us to conclude that the goal of full employment would be put under greater strain by demographic growth (if this were to persist), than by productivity gains (if these were to persist). Admittedly, a sufficiently rapid individual reduction in working hours can counter the negative effects on employment of these two trends combined. But productivity gains are the only way to keep per-capita wages constant.
Les pratiques de mobilité des Français. Graphiques de novembre 2024 issus d’une analyse avec Fabien Perez (SDES) à partir des données de l’enquête mobilité des personnes (EMP) de 2019.
Despite extensive research on sustainable business models and the development of various tools to facilitate their implementation, barriers persist particularly concerning the governance of a local ecosystem of actors. We identify that a facilitating public policy framework combined with internal institutional, strategic and operational drivers linked to the governance of local ecosystems is crucial for the implementation of local sustainable business models.
This thesis mainly contributes to the literature on the circular economy by providing a strategic vision of the process of securing secondary resources in circular projects. The thesis also has managerial implications by offering insights into the governance mechanisms, territorial dynamics, and market arrangements that underpin successful circular economy initiatives.
Cette note a pour but de présenter de manière synthétique les modèles mathématiques
utilisés aujourd’hui par la communauté des économistes du climat et leurs limites. Ces
modèles sont utilisés à la fois pour dimensionner les mesures à prendre pour limiter le
changement climatique et pour évaluer les impacts du changement climatique sur le système
économique et financier.
This paper explores the potential contribution of Sustainability-linked Money Creation (SMC) to sustainable economic policies. Our simulations suggest that, in comparison to a baseline scenario, SMC issues could potentially constitute an anti-inflationary, counter-cyclical green transition policy, that increases biomimetic resilience and contains income and wealth inequalities. We finally discuss the policy implications, as well as the limitations of our findings.
The publication aims at anwsering the following questions :
