Manzini, Paola (contributor); Mariotti, Marco (contributor) - 2007
captures in an analytically convenient way the idea that the
rate of time preference between alternatives is not constant but …-hyperbolic model or �( ; ) model�. In it, the rate
of time preference between a present alternative and one available in the next … period is
, whereas the rate of time preference between two consecutive future alternatives is .
Therefore (x;t) is …