This thesis is a collection of three essays on labor economics from a macroeconomic prospective. Chapter 1 discusses imperfect information, self-selection and the market for higher education. It explores how the steady trends in increased tuition costs, college enrollment and returns to...

This thesis is a collection of three essays on mechanism design. In Chapter 1, we consider a general Informed Principal Problem in the context of procurement. Both the potential suppliers and the buyer hold some private information: each supplier knows his cost of production, the buyer knows how...

This thesis consists of three chapters studying dynamic economies in general equilibrium. The first chapter considers an economy in business cycles with potentially imperfect financial markets. The second chapter investigates an economy in its balanced growth path with heterogeneous firms. The...

This dissertation consists of three chapters exploring the role of incomplete information and learning in elections. The first chapter examines the dynamics of voter learning about candidate ability in repeated elections. The dynamic process of belief revision gives rise to incentives that vary...