Externalities such as pollution and road congestion are jointly produced by the use of intermediate inputs by firms and the consumption of final goods by households. Remarkably, to cope with such externalities policy proposals often suggest very partial tax reforms. A pertinent example is the...

In this paper we study the welfare effects of a budgetary neutral increase in taxes on car commuters in a model that takes into account the presence of employer-paid parking at the workplace. Results include the following. First, we find that the presence of employer-paid parking substantially...

We study the interaction between pricing, frequency of service and information provision by public transport firms offering scheduled services, and we do so under various regulatory regimes. The model assumes that users can come to the bus stop or rail station at random or they can plan their...