Allocation of free emissions allowances may distort firms' incentives or have adverse distributional effects. Nevertheless, Böhringer and Lange (2005) show that in a closed emissions trading scheme with a fixed number of firms, a first-best outcome can be achieved if the base year for...

In the longer run, effects on R&D and the implementation of advanced abatement technology may be at least as important as short-run cost effectiveness when we evaluate public environmental policy. In this paper, we show that the number of firms that adopt advanced abatement technology could be...

This paper shows that tradable emissions permits and an emissions tax affect the firms' technology choice differently under uncertainty. A tax encourages the most flexible technology if and only if stochastic costs and the equilibrium permit price have sufficiently strong positive covariance,...

Allocation of emission allowances may affect firms' incentives to invest in clean technologies. In this paper we show that so-called output-based allocation tends to stimulate such investments as long as individual firms do not assume the regulator to tighten the allocation rule as a consequence...

Authorities often lack information for efficient regulation of the commons. This paper derives a criterion comparing prices versus tradable quantities in terms of expected welfare, given uncertainty, optimal policy and endogenous cost structure. I show that one cannot determine which regulatory...

This paper investigates environmental policy in the presence of endogenous preferences. The optimal time trajectory is achieved if and only if the consumer is perfectly time-consistent. The suboptimal trajectories do not only differ from the optimal path during the transition between two...