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. 2017 Jun 7;54(1):37–59. doi: 10.1007/s11166-017-9252-4

Table 3.

Estimates of the utility function and the noise parameter for the pooled data across the four experimentsa

Gains domain Loss domain
Parameter TP TD TP and TD TP TD TP and TD
γ 0.887 0.924 0.908 0.769 0.848 0.812
(0.012) (0.009) (0.007) (0.011) (0.010) (0.007)
ξ 0.886 0.623 0.744 1.067 0.829 0.941
(0.045) (0.026) (0.024) (0.060) (0.038) (0.034)
TP vs TD: p γ = 0.014 , p ξ < 0.001 , p < 0.001 p γ < 0.001 , p ξ < 0.001 , p < 0.001

aAll amounts are converted to US Dollars (using average exchange rates for 2013). γ denotes the coefficient of risk aversion, and ξ captures the measurement noise. The p-values reported are for γ, ξ , and for both parameters being the same in the TP and TD treatments. Inference for ξ is based on a parametrization in which log(ξ) = μ 0 + μ 1 δ TD, where δ TD is a dummy indicator for a time delay session, and the reported p-value is for the restriction μ 1 = 0. The joint tests are likelihood ratio tests. Standard errors are provided in parentheses