In this paper, we extend the well known result that hyperbolically discounting agents tend to postpone costs into the future. In a simple model we show that, without commitment to the ex ante optimal plan, no investment in environmental protection is undertaken over the whole time horizon, no...

The paper applies the synthetic control method to examine the effects of California's Capand-Trade Program on environmental innovation. The analysis exploits the International Patent Classification system to identify patents relating to environmentally sound technologies. This enables the study...

We study the effect of a shock on firms’ costs in a general setting by considering both perfect and imperfect competition and a general cost function. We show that, counterintuitively, firms’ profits may increase with cost increases. We generalize Seade’s (1985) results by considering the...

We design a global refunding scheme as a new international approach to address climate change. A global refunding system allows each country to set its carbon emission tax, while aggregate tax revenues are partially refunded to member countries in proportion to the relative emission reductions...

In a dynamic general equilibrium model we study the interplay between gradual and structural change in the transition to a low-carbon energy industry. We focus on the welfare-theoretic consequences of diverging social and private rates of time preference and a time-to-build feature in capital...

Technology policy is the most widespread form of climate policy and is often preferred over seemingly efficient carbon pricing. We propose a new explanation for this observation: gains that predominantly accrue to households with large capital assets and that influence majority decisions in...

Under imperfect competition, the effect of a cap-and-trade system on indus- try profits depends on the type of abatement technology that is used by firms: industries that use process-integrated technologies are more affected than those using end-of-pipe abatement technologies. The interaction...

The paper develops the Basic Climate Economic (BCE) model featuring the core elements of climate economics and climate policy. The BCE model incorporates fossil stock depletion, pollution stock accumulation, endogenous growth, and climate-induced capital depreciation. We first use graphical...

We derive the optimal contributions to global climate policy when countries differ with respect to income level and pollution intensity. Countries' growth rates are determined endogenously, and abatement efficiency is improved by technical progress. We show that country heterogeneity has a...