This dissertation contains six studies on asset pricing. It analyzes questions related to life-cycle portfolio choice in the presence of time-varying bond risk premia, annuity risk management, delegated and decentralized investment management, return predictability, and mortgage choice. The first three chapters examine normative portfolio and annuity choice problems. The common theme in the last three papers is to impose the restrictions following from economic theory in estimation. This enhances not only the efficiency of the estimates, but also deepens our understanding of the dynamics of asset prices and of the behavior of economic agents in financial markets.
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