Escaping Poverty: Risk-Taking and Endogenous Inequality in a Model of Equilibrium Growth

Michael A. Sadler
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Michael A. Sadler: Kansas State University

Review of Economic Dynamics, 2000, vol. 3, issue 4, 704-725

Abstract: Recent macroeconomic models of income distribution generate equilibria characterized as poverty traps. These models specify a production indivisibility such that, due to problems of asymmetric information in credit or capital markets, poor agents are never able to acquire the resources necessary to overcome the indivisibility. In the context of an equilibrium growth model, this paper demonstrates that faced with such constraints, poor, risk-averse agents have incentives to voluntarily take on risk in the hopes of exiting poverty. Each period they remain in poverty, they sacrifice a small amount of current consumption to pool resources for this risky activity. Risk-taking, economic mobility, and the distribution of income are generated endogenously. Furthermore, beginning from identical endowments, "initial" inequality also emerges endogenously. It is shown that voluntary risk-taking eliminates many potential steady-state equilibria of this and other models -- those that exhibit individual poverty traps. All agents (or dynasties) expect to escape at some future date, after a perhaps extended spell in poverty. (Copyright: Elsevier)

Date: 2000
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DOI: 10.1006/redy.1999.0088

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