Risk Loving and Fat Tails in the Wealth Distribution

Aloisio Araujo, Juan Pablo Gama and Timothy Kehoe

No 33298, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: We study the dynamic properties of the wealth distribution in an overlapping generations model with warm-glow bequests and heterogeneous attitudes towards risk. Some dynasties of agents are risk averters, and others are risk lovers. Agents can invest in two types of Lucas trees. The two types of trees are symmetric in the sense that one type has a high return in states where the other has a return of zero. This symmetry allows risk averters to perfectly ensure their future income and eliminates aggregate uncertainty in the model. Furthermore, risk lovers take extreme portfolio positions, which make it easy for us to characterize the evolution of their wealth holdings over time. We show that the model has an equilibrium in which the aggregate wealth distribution converges to a unique invariant distribution. The invariant distribution of wealth of the risk lovers has fat tails for high bequest rates. The existence of fat tails is endogenously generated by the behavior of risk lovers rather than by the exogenous existence of fat tails in the endowments or in the returns of the assets.

JEL-codes: C62 D51 D53 (search for similar items in EconPapers)
Date: 2024-12
New Economics Papers: this item is included in nep-dge, nep-fdg and nep-rmg
Note: EFG
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