Water is vital for supporting life and welfare. Worldwide, water resources are under high pressure and freshwater ecosystems have been degraded and even lost. These pressures are likely to be aggravated by climate change. To tackle ecosystem service degradation and loss, Payment for Ecosystem...

We analyse congestion pricing in a road and rail network with heterogeneous users. On the road there is bottleneck congestion. In the train there is crowding congestion. We separately analyse "proportional heterogeneity" that varies the values of time and schedule delay scalarly in fixed...

From the perspective of competitors, competition may be modeled as a prisoner’s dilemma. Setting the monopoly price is cooperation, undercutting is defection. Jointly, competitors are better off if both are faithful to a cartel. Individually, profit is highest if only the competitor(s) is...

In 1989, the government of Mexico City introduced a program, Hoy No Circula, that bans most drivers from using their vehicles one weekday per week on the basis of the last digit of the vehicle’s license plate. This article measures the effect of the driving restrictions on air quality using...

This testimony makes three main points. First, inheritances tend to exacerbate existing economic disparities and may be the most important barrier to intergenerational economic mobility. These tendencies are most pronounced at the top of the income distribution. While inherited income is...

This paper considers three questions: (1) the relative burden of wealth transfer taxes on heirs versus donors in a partial equilibrium context, (2) the distributional effects of the estate tax if its burdens are assigned to heirs, and (3) whether the incidence of a wealth transfer tax...