Publication

Financial Markets Equilibrium with Heterogeneous Agents

2009
Working Papers

Abstract

This paper presents an equilibrium model in a pure exchange econ- omy when investors have three possible sources of heterogeneity. In- vestors may di§er in their beliefs, in their level of risk aversion and in their time preference rate. We study the impact of investors hetero- geneity on the properties of the equilibrium. In particular, we analyze the consumption shares, the market price of risk, the risk free rate, the bond prices at di§erent maturities, the stock price and volatil- ity as well as the stockís cumulative returns, and optimal portfolio strategies. We relate the heterogeneous economy with the family of associated homogeneous economies with only one class of investors. We consider cross sectional as well as asymptotic properties.

Official source

https://infoscience.epfl.ch/entities/publication/8b0d36eb-fe38-4e01-acc1-246937233bed

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2009
Working Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8b0d36eb-fe38-4e01-acc1-246937233bed

About this result

Related concepts (32)

General equilibrium theory

In economics, general equilibrium theory attempts to explain the behavior of supply, demand, and prices in a whole economy with several or many interacting markets, by seeking to prove that the interaction of demand and supply will result in an overall general equilibrium. General equilibrium theory contrasts with the theory of partial equilibrium, which analyzes a specific part of an economy while its other factors are held constant.

Risk premium

A risk premium is a measure of excess return that is required by an individual to compensate being subjected to an increased level of risk. It is used widely in finance and economics, the general definition being the expected risky return less the risk-free return, as demonstrated by the formula below. Where is the risky expected rate of return and is the risk-free return. The inputs for each of these variables and the ultimate interpretation of the risk premium value differs depending on the application as explained in the following sections.

Risk-free rate

The risk-free rate of return, usually shortened to the risk-free rate, is the rate of return of a hypothetical investment with scheduled payments over a fixed period of time that is assumed to meet all payment obligations. Since the risk-free rate can be obtained with no risk, any other investment having some risk will have to have a higher rate of return in order to induce any investors to hold it.

Related publications (32)

Financial Markets Equilibrium with Heterogeneous Agents

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