We address one aspect of the treatment of technical change in the environmental economics literature: how technical change impacts the marginal cost of abatement. We review a selection of papers that employ a variety of representations of technical change, and show that these representations have quite different, and sometimes surprising, effects on the marginal costs of pollution reductions. W...

We consider an economy à la Lucas (1978, Econometrica 46, 1429–1446) with a risk-averse representative agent. The exogenous growth rate of the economy follows a random walk. We characterize the set of utility functions for which it is efficient to discount more distant cash flows at a lower rate. The benchmark result is that, when the growth rate is almost surely nonnegative, the yield curve is...

Türkiye’nin enerji ihtiyacının her geçen gün artmasıyla hızlı sürede kendini yenileyebilme özelliği olan yenilenebilir enerjinin arzı içerisindeki yerini almasını gündeme getirmiştir. Dünyanın ekolojik dengesinin korunması ve enerjide dışa bağımlılığın önüne geçilmesinde son derece önemli bu kaynak tüm Dünya’da da ilgi görmektedir. Birçok devlet arz güvenliğinin tedarikinin sağlanması için kayn...

United States fisheries are managed by regional councils. Fishermen can participate in fisheries managed by multiple councils, and effort controls in one region could lead to effort leakage into another. Using difference-in-differences, we test for leakage across regional fisheries boundaries for a catch share program in New England. We find evidence that the New England groundfish sector progr...

We offer a nationwide analysis of the initial years of Costa Rica’s PSA program, which pioneered environmental-services payments and inspired similar initiatives. Our estimates of this program’s impact on deforestation, between 1997 and 2000, range from zero to one-fifth of 1% per year (i.e., deforestation is avoided on, at most, 2 out of every 1,000 enrolled hectares). The main explanation for...

We examine theoretically the emergence of participatory comanagement agreements that share between state and user the management of resources and the benefits from use. Going beyond useruser interactions, our state-user model addresses a critical question—when will comanagement arise?— in order to consider the right baseline for evaluating comanagement’s forest and welfare impacts. We then comp...

In a dynamic general equilibrium model we explictly consider the relationship between the product attributes ’durability’ and ’recyclability’. Both efficiency and sustainability aspects are taken into account. It turns out (a) that durability may be inefficient even in a perfectly competitive economy in which environmental externalities are absent, (b) that in case where markets for product des...

In an integrated dynamic general equilibrium model of the economy and the ecosystem humans and other species compete for land and prey biomass. Each submodel exhibits a price-driven competitive allocation mechanism, and the endogenously determined habitat is either openly accessible or privately owned. In both scenarios specific corrective taxes or subsidies are needed to internalize ecosystem ...