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Dissaving of the Past via Reverse Mortgages* * This is an improved version of paper "Dissaving of the past: The case of reverse mortgage." The authors are indebted to an anonymous referee for his/her very helpful suggestions, particularly with regard to the exposition of the paper about both the efficiency of equilibrium allocations and the motivation. The authors gratefully acknowledge the valuable suggestions from the audience at The Second Brazilian Workshop of the Game Theory Society which was held at the University of São Paulo, from July 29 to August 4, 2010. The event honored John Nash, on the occasion of the 60th anniversary of Nash equilibrium. Jaime Orrillo acknowledges CNPq of Brazil for financial support 304663/2007-7 and IMPA for financial support.

We build a simple two-period general equilibrium model with incomplete markets which incorporates reverse market mortgages without appealing to the complicated framework required by the infinite horizon models. Two types of agents are considered: elderly agents and investors. The former are owners of physical assets (for instance housing) who will want to sell them to investors. For that end the elderly agents, who are assumed to not have any bequest motive, issue claims against physical assets they own. One of the claims issued will be interpreted as reverse mortgage (loan for seniors) and the other one as a call option written on the value of housing equity. By assuming that both the elderly agents and the investors are price takers, and by applying the generalized game approach, we show that the equilibrium in this economy always exists, providing the usual conditions on utilities and initial endowments are satisfied. We end with a remark on efficiency of the quilibrium.

Keywords:
Reverse Mortgage; Incomplete markets; Financial Innovation


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