It is widely believed that vertical integration in an environment without foreclosure, or more generally without any mechanism that restricts competition among firms, raises the welfare of consumers. In this paper we show that this can be overturned in a standard setting. We consider a vertical...

We study the optimal path for capital and labor taxes in a dynamic economy with heterogeneous agents. In an otherwise standard model we concentrate on tax reforms that are both Pareto effcient and Pareto improving. Also, we assume the capital tax rate can never rise above its initial level and...