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A regulator anticipates learning about the relation between environmental stocks and economic damages. For a model with linear-quadratic costs and a general learning process, we show analytically that anticipated learning decreases the optimal level of abatement "at a given information set." If...
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"Prices versus quantities" (Weitzman 1974), a hugely influential paper, is widely cited (and taught) in current debates about the best policy to reduce greenhouse gas emissions. The paper's criterion for ranking policies suggests that technological uncertainty favors taxes over cap and trade....
Persistent link: https://www.econbiz.de/10011927948
We develop a dynamic regulation game for a stock externality under asymmetric information and future market uncertainty …. Within this framework, regulation is characterized as the implementation of a welfare-maximization program conditional on …-consistent policy rules that implement the stochastic first best as long as a future market exists. We apply our theory to carbon …
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We introduce a "smart" cap and trade system that eliminates the welfare costs of asymmetric information (“uncertainty”). This cap responds endogenously to technology or macroeconomic shocks, relying on the market price of certificates to aggregate information. It allows policy makers to...
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We develop a stochastic model to rank different policies (tax, fixed cap and relative cap) according to their expected total social costs. Three types of uncertainties are taken into account: uncertainty about abatement costs, business-as-usual (BAU) emissions and future economic output (the two...
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Within the world of market mechanisms, two parallel ideas have been formative in the developing discourse on environmental policy: a "price instrument" through a Pigouvian tax, and a "quantity instrument" through a Dalesian emissions trading instrument. Over time, these simple theoretical ideas...
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