This paper discusses how a consistent treatment of asset markets may be integrated into standard trade-focussed CGE models. Starting from a core specification of the real economy, calibrated to data for Zambia in the mid-1990s, the paper examines the properties of a hierarchy of models which...

We compute the optimal investment-consumption policy for an agent that is able to invest upon two non-risky assets, one liquid and the other illiquid -which means that transaction costs have to be paid when he buys or sells this last asset. An equilibrium model then gives us a way to compute the...

In this paper we exploit global analysis to explore welfare properties of a standard one-commodity GEI, under different notions of constrained Pareto optimality. In a unifying framework we revise and extend some of the leading results of the literature on incomplete markets and government...

We examine the effects of human capital on consumption, stock market, and other fluctuations in a general equilibrium continuous-time model. A representative consumer-worker-investor derives utility from consumption and leisure. A representative firm demands labour as the sole input to a...

This paper develops a general equilibrium, continuous time model where portfolio constraints generate mispricing between redundant securities. Constrained consumption-portfolio optimization techniques are adapted to incorporate redundant, possibly mispriced, securities. We demonstrate the...

In an economy with a non-atomic measure space of assets and exchangeable risks, the Arbitrage pricing Theory (APT) holds exactly; and factors are structurally specified, which allows for an economic interpretation.

Comparative statics in an Arrow-Radner incomplete market equilibrium model shows that some insights on agents' risk perception can be inferred from market prices. We call "precautionary savings" those savings which are invested in some riskless asset. The results are: precautionary savings...