We report some results on the complex-temperature ~CT! singularities of q-state Potts models on the square lattice. We concentrate on the problematic region Re(a),0 ~where a5e) in which CT zeros of the partition function are sensitive to finite lattice artifacts. From analyses of low-temperature series expansions for 3<q<8, we establish the existence, in this region, of complex-conjugate CT sin...

This article analyzes the long-term consequences of nuclear waste storage within a general equilibrium framework. The objective is to determine the conditions for which the storage of waste, and thus the transfer of externalities towards the future, can be optimal. These conditions could explain the implementation of intergenerational externalities, justifying an intertemporal Not In My Back Ya...

Choices involving tradeo¤s of bene…ts and costs over time are pervasive in our everyday lives. The observation of declining discount rates in experimental settings has led many to promote hyperbolic discounting over standard exponential discounting as the preferred descriptive model of intertemporal choice. In this paper, I develop a new framework that directly models the intertemporal utility ...

Electric vehicles offer the promise of reduced environmental externalities relative to their gasoline counterparts. We determine the spatial heterogeneity in these externalities and evaluate several spatially-differentiated policies to correct them. To do this, we combine a discrete-choice model of new vehicle purchases, an econometric analysis of the electric power industry, and the AP2 air po...

This paper investigates an environmental policy designed to reduce the emission of pollutants under uncertainty, where the agents’ problem is formulated as an optimal stopping problem. We first analyze the single-agent’s case according to Pindyck [Pindyck, R.S., 2002. Optimal timing problems in environmental economics. Journal of Economic Dynamics and Control 26, 1677–1697]. We then extend the ...

In most countries, environmental regulation focuses on local pollution, which causes damages near the emission source, while regulation on global pollutants such as greenhouse gases (GHG) has been slow. Theoretically, local and global pollutants can either be substitutes or complements in production, implying that local pollution regulation may either intensify or reduce global warming concerns...

Les instruments tarifaires et non sont de plus en utilis&#233;s pour encourager les m&#233;nages &#224; r&#233;duire leurs d&#233;chets accro&#238;tre le tri recyclage. Dans cet article, nous testons l&#8217;efficacit&#233; ces utilisant un panel donn&#233;es l&#8217;ensemble des municipalit&#233;s la R&#233;gion wallonne (Belgique). responsables mise &#339;uvre politique mati&#232;re d&#233;ci...

Designing markets for pollution when damages vary across sources : Evidence from the NOx Budget Program. Existing and planned emissions trading programs are almost exclusively “emissions-based”, meaning that a permit can be used to o¤set a ton of pollution, regardless of where in the program region the ton is emitted. Designing programs in this way presumes that the health and environmental dam...

Although panel data have been used intensively by a wealth of studies investigating the GDP-pollution relationship, the poolability assumption used to model these data is almost never addressed. This paper applies a strategy to test the poolability assumption with methods robust to functional misspecification. Nonparametric poolability tests are performed to check the temporal and spatial homog...

Consumers are often uninformed, or unsure, about the ambient level of environmental risk. An optimal policy must jointly determine efficient levels of self-protection, information provision, and public risk mitigation efforts. Unfortunately, conventional welfare measures are not amenable to welfare analysis in the presence of imperfect information. We develop a theoretical welfare measure, call...