This dissertation is a collection of three independent research papers and three chapters with surveys introducing into the respective literature. The first paper analyses the effects of introducing Inequity Aversion in a Moral Hazard Problem, the second paper is about optimal delegation in...

This dissertation consists of four chapters, which are self-contained and can be read independently of each other. In Chapter 1, we analyse services trade liberalisation, which is a prerequisite for international production networks to arise. In particular, we study the determinants of services...