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The ongoing debate concerning the ranking of taxes versus cap and trade for climate policy begins with Weitzman's (1974) seminal slope-based criterion and concludes that taxes likely dominate quotas. We challenge this conclusion and the intuition behind it. Because technology shocks and pollution stocks are both persistent, a technology shock alters the intercepts of both the marginal damage and abatement cost curves. The ratio of these two intercept shifts is as important as the ratio of slopes in ranking policies. Technology innovations diffuse gradually, strengthening the importance of the ratio of intercept shifts. For plausible parameter combinations, quotas can dominate taxes. [ABSTRACT FROM AUTHOR]

The paper develops a general framework for the analysis of environmental shocks in growing economies. Endogenous capital investments allow identifying the dual role of capital as a buffer against shocks and a source of pollution. We study the effects of recurring natural disasters on optimal growth and efficient environmental policies. Emissions may cause continuous fluctuations, entail discrete and recurring jumps, or trigger so-called "tipping points" with large costs to the economy. Closed-form solutions are provided for all the model variants. We discuss possible applications in environmental economics and identify current research gaps. [ABSTRACT FROM AUTHOR]

We explore the efficacy of price and quantity controls as environmental policy instruments in a stochastic setting in which agents are risk averse. We demonstrate that the assumption of risk aversion may improve the performance of a tax relative to that of a system of tradable quotas, and that restricting quota trade may enhance efficiency even though risk aversion in itself limits volumes of trade. The government may be able to improve the performance of a tradable quota system by judicious choice of distribution and amount of initial quotas and by trading pro-actively in the quota market. [Copyright &y& Elsevier]