This paper introduces endogenous and directed technical change in a growth model with environmental constraints. A unique final good is produced by combining inputs from two sectors. One of these sectors uses "dirty" machines and thus creates environmental degradation. Research can be directed...

This Paper presents a survey of the literature on trade liberalization and globalization. The questions are why trade liberalization occurred, why trade liberalization took the form of reciprocity combined with multilateralism, why the liberalization allows for protectionist policies, and why...