This paper studies the socially optimal emission and commodity tax policy when consumers are willing to pay a price-premium for environmentally friendlier variants of a commodity vertically differentiated in environmental quality. The first-best levels of quality can be obtained by a combination...

We consider one polluting industry in an open economy. The national government implements a policy of industrial pollution control, by inducing appropriate technological innovation to reduce toxic emissions. The emission-reducing innovations are developed through firm-specific costly...

The paper discusses efficiency issues in the public provision of environmental services, in particular waste water treatment. It is shown that in the face of increasing, respectively decreasing returns to scale the zero profit constraint of a cost minimizing public firm induces underinvestment,...

Given the state of rural broadband, extending universal service to high-speed Internet access may be premature.