Risk and intertemporal substitution: Livestock portfolios and off-take among Kenyan pastoralists

A-Tier
Journal: Journal of Development Economics
Year: 2012
Volume: 97
Issue: 2
Pages: 415-426

Score contribution per author:

2.011 = (α=2.01 / 2 authors) × 2.0x A-tier

α: calibrated so average coauthorship-adjusted count equals average raw count

Abstract

Most decisions involve variability in two dimensions: uncertainty across states of nature and fluctuations over time. The stakes involved in tradeoffs between these variability dimensions are especially high for the poor who have difficulty managing and recovering from shocks. We assume Epstein and Zin recursive preferences and estimate risk aversion and intertemporal substitution as distinct preferences using data from Kenyan herders. Results suggest that the assumption implicit in additive expected utility models that relative risk aversion (RRA) is the inverse of the elasticity of intertemporal substitution (EIS) is flawed. Specifically, our RRA and EIS estimates are consistent with a preference for the early resolution of uncertainty, which we believe is driven importantly by the instrumental value of early uncertainty resolution. This same preference pattern is consistent with asset smoothing in response to a dynamic asset threshold.

Technical Details

RePEc Handle
repec:eee:deveco:v:97:y:2012:i:2:p:415-426
Journal Field
Development
Author Count
2
Added to Database
2026-01-25