Two essays in environmental economics and offshoring

Abstract

This dissertation consists of two independent studies. The first study belongs to the field of environmental economics and the second is on international trade, with a focus on offshoring. In the first study, we investigate firm investment in advanced abatement technology under a heterogeneous firms framework. In contrast to existing literature, we find that the optimal level of investment in advanced abatement technology is an inverted U-shaped function of firm productivity. More-productive firms have superior environmental performance, in the sense that they have lower emission per unit of output. Comparative statics shows that in response to a tighter environmental regulation, more-productive firms tend to raise their investment in advanced abatement technology while less-productive firms do the opposite. Key theoretical predictions are confirmed by Chinese data. The second study analyzes the decision of a multinational firm from a developed country to slice a production chain to allocate different tasks of the production chain globally. The process involves a wide range of tasks that varies from very routine jobs to very research and development (R&D) intensive work. We find that under certain conditions, a drop in offshoring costs (1) leads to more slicing (an increase in the length of production chain) and more offshoring, (2) stimulates R&D, and (3) raises employment in the developed country.