Welfare Costs, Long Run Consumption Risk, and a Production Economy

The main goal of this paper is to measure the welfare costs of business cycles in a production economy in which the representative agent has low risk aversion and - at the same time - the equity premium and the co-movements of aggregate quantities and market returns are comparable to what observed in historical data. In order to do so, I consider a production economy in which the representative agent has Epstein-Zin-Weil(1989) preferences, productivity has a Long Run Risk component and there are capital adjustment costs. In this way, I try to bridge the gap between the current Long Run Risk asset pricing literature, in which quantities are taken as exogenous, and the standard macroeconomic business cycle models. Preliminary results from a benchmark exchange economy suggest that when there is a Long Run Consumption Risk and the representative agent prefers early resolution of uncertainty, the implied total welfare costs of the consumption uncertainty range from 12\% to 20\%. (JEL classification: E20, E32, G12, D81)