# Regime Switching Optimal Growth Model with Risk Sensitive Preferences

*Anindya Goswami*,
*Nimit Rana* and
*Tak Kuen Siu*

Papers from arXiv.org

**Abstract:**
We consider a risk-sensitive optimization of consumption-utility on infinite time horizon where the one-period investment gain depends on an underlying economic state whose evolution over time is assumed to be described by a discrete-time, finite-state, Markov chain. We suppose that the production function also depends on a sequence of i.i.d. random shocks. For the sake of generality, the utility and the production functions are allowed to be unbounded from above. Under the Markov regime-switching model, it is shown that the value function of optimization problem satisfies an optimality equation and that the optimality equation has a unique solution in a particular class of functions. Furthermore, we show that an optimal policy exists in the class of stationary policies. We also derive the Euler equation of optimal consumption. Furthermore, the existence of the unique joint stationary distribution of the optimal growth process and the underlying regime process is examined. Finally, we present a numerical solution by considering power utility and some hypothetical values of parameters in a regime switching extension of Cobb-Douglas production rate function.

**Date:** 2021-10, Revised 2021-11

**New Economics Papers:** this item is included in nep-gro and nep-upt

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http://arxiv.org/pdf/2110.15025 Latest version (application/pdf)

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Journal Article: Regime switching optimal growth model with risk sensitive preferences (2022)

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