In a critique of the Loewenstein and Prelec (1992) theory of intertemporal choice,\ud al-Nowaihi and Dhami (2006) point out to four errors. One of the alleged errors was\ud that the value function in prospect theory is decreasing. But it is in fact increasing.\ud We provide a correction and a formal proof. As a corollary, we show that the\ud elasticity of the value function is bounded between zero and one. Nevertheless, all\ud the remaining points in al-Nowaihi and Dhami (2006) remain valid
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