Liutang, Gong; Shenghao, Zhu - In: Economics Bulletin 5 (2006) 8, pp. 1-8
Observation equivalence holds in the hyperbolic discounting models such as Laibson (1996), Barro (1999), and Krusell et al (2002). We study a hyperbolic discounting model where the policy function cannot be replicated by a geometric discounting model. Under the logarithmic utility and...