Abstract

This article investigates the effects of small proportional transaction costs on lifetime consumption and portfolio decisions. The extant literature has focused on agents with additive utility; here, we argue that this is essentially without loss of generality at the leading order for small costs. To shed light on the effects of alternative risk preferences, we in turn perform a higher-order analysis for the archetype of non-additive preferences – the isoelastic recursive utilities proposed by Epstein and Zin.

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