This Paper solves for optimal international portfolio choice in the presence of liquidity constraints and undiversifiable labour income risk. Optimal portfolios are internationally diversified while positive correlation between domestic stock market returns and permanent labour income shocks can...

This paper proposes and solves a search unemployment model in which job separation requires mandatory notice. When jobs are subject to idiosyncratic uncertainty, firms would issue advance notice even with good business conditions. We show that such precautionary policy is not pursued if it...

We analyse the consumption strategy of a dynamically inconsistent individual for goods that provide an immediate benefit and a delayed cost. The agent has incomplete information on the cost inherent to each unit of consumption and partially learns this value anytime he consumes. We show that, by...

An economy consists of many duopolistic markets. Firms must earn normal profits in the long run if they are to survive. Normal profits are interpreted as the long-run limit of average profits in the whole economy. We adopt the aspiration based model of firm behaviour, and link it to the economy...

Economists traditionally tackle normative problems by computing optimal policy, ie the one that maximizes a social welfare function. In practice, however, a succession of marginal changes to a limited number of policy instruments are implemented, until no further improvement is feasible. I call...

This paper investigates whether different systems of financial market organization influence the way in which newly created stock markets become more (weak-form) efficient. The author conducts a detailed comparative analysis of stocks listed on the Budapest and Warsaw Stock Exchanges, 1991-98,...

We analyse an agency model where one individual decides how much evidence he collects. We assume that he has free access to information, but all the news acquired becomes automatically public. Conditional on the information disclosed, a second individual with conflicting preferences undertakes...