Title: Essays on International Trade, Economic Growth and the Environment
Description: This dissertation consists of three essays on Economic Growth. The first essay introduces directed technical change in a growth model with environmental constraints. The final good is produced from "dirty" and "clean" inputs. We show that when inputs are sufficiently substitutable, sustainable growth can be achieved with temporary taxes/subsidies that redirect innovation towards clean inputs; and that delay in intervention is costly as it later necessitates a longer transition phase with slow growth.