If a monopoly supplies a perishable good, such as tickets to a performance, and is unable to price discriminate within a period, the monopoly may benefit from the potential entry of resellers. If the monopoly attempts to intertemporally price discriminate, the equilibrium in the game among...

This paper contributes to the growing effort to synthesize the fields of trade policy and environmental policy. We discuss: the question of whether international trade undercuts unilateral internalization policies: the role of income constraints in environmental policy; and the possibility of...

A dynamic hedging problem with stochastic production is solved. The optimal feedback rules recognize that future hedges will be chosen optimally based on the most current information. The resulting distribution of revenue is analyzed numerically. This analysis enables the hedger to select his...

The problem of choosing second-best trade policies is modified by including sector-specific policies as well as tariffs. We obtain conditions under which reduction of the largest tariff is welfare improving. Formulae for the optimal tariff and sector-specific subsidy are used to study the design...

This note derives the dynamic programming equation (DPE) to a differentiable Markov Perfect equilibrium in a problem with non-constant discounting and general functional forms. We begin with a discrete stage model and take the limit as the length of the stage goes to 0 to obtain the DPE...

The strategic effects of subsidies on output and subsidies on investment differ substantially in dynamic models where a government's commitment ability is limited. Output subsidies remain effective even as the period of commitment vanishes, but investment subsidies may become completely...

Most environmentalists favor the reduction in CO2 emissions but oppose international trade in emissions permits Although economic theory provides a strong case in favor of trade in permits) there is little empirical evidence of the size of potential benefits. We estimate the benefits of this...

We study a model in which management and a union bargain sequentially, first choosing a rule that will later determine the level of employment, and then choosing a wage. The government then chooses an output or an employment subsidy. An exogenous natural turnover rate in the unionized sector...

The strategic effects of subsidies on output and subsidies on investment differ substantially in dynamic models where a government's commitment ability is limited. Output subsidies remain effective even as the period of commitment vanishes, but investment subsidies may become completely...

This paper considers the effect of market structure on the durability of goods. A previous model is analyzed to provide conditions under which a monopolist provides less durable goods and a lower present value of services than the social optimum.