Abstract:The paper investigates the consumption-investment problem for an investor with Epstein-Zin utility in an incomplete market. Closed but not necessarily convex constraints are imposed on strategies. The optimal consumption and investment strategies are characterized via a quadratic backward stochastic differential equation (BSDE). Due to the stochastic market environment, solutions to this BSDE are unbounded, so the BMO argument breaks down. After establishing the martingale optimality criterion and carefully se… Show more
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