Papers › Necessary and Sufficient Conditions for Existence and Uniqueness of Recursive Utilities
Necessary and Sufficient Conditions for Existence and Uniqueness of Recursive Utilities
Jaroslav Borovicka, John Stachurski
We study existence, uniqueness and computability of solutions for a class of discrete time recursive utilities models. By combining two streams of the recent literature on recursive preferences---one that analyzes principal eigenvalues of valuation operators and another that exploits the theory of monotone concave operators---we obtain conditions that are both necessary and sufficient for existence and uniqueness of solutions. We also show that the natural iterative algorithm is convergent if and only if a solution exists. Consumption processes are allowed to be nonstationary.
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