Cruz Rambaud Salvador, Muñoz Torrecillas María José
Departamento de Economía y Empresa, Facultad de Ciencias Económicas y Empresariales, Universidad de Almería, La Cañada de San Urbano, s/n, 04120, Almería, Spain.
PLoS One. 2016 Feb 18;11(2):e0149256. doi: 10.1371/journal.pone.0149256. eCollection 2016.
In general terms, decreasing impatience means decreasing discount rates. This property has been usually referred to as hyperbolic discounting, although there are other discount functions which also exhibit decreasing discount rates. This paper focuses on the measurement of the impatience associated with a discount function with the aim of establishing a methodology to compare this characteristic for two different discount functions. In this way, first we define the patience associated with a discount function in an interval as its corresponding discount factor and consequently we deduce that the impatience at a given moment is the corresponding instantaneous discount rate. Second we compare the degree of impatience of discount functions belonging to the same or different families, by considering the cases in which the functions do or do not intersect.
一般来说，降低不耐烦程度意味着降低贴现率。这种特性通常被称为双曲线贴现，尽管还有其他贴现函数也表现出贴现率递减的情况。本文着重于测量与贴现函数相关的不耐烦程度，目的是建立一种方法来比较两种不同贴现函数的这一特性。通过这种方式，首先我们将区间内与贴现函数相关的耐心定义为其相应的贴现因子，进而推断出给定时刻的不耐烦程度就是相应的瞬时贴现率。其次，我们通过考虑函数相交或不相交的情况，比较属于同一或不同族的贴现函数的不耐烦程度。
