The <i>q</i>-Exponential Social Discounting Functions of Gain and Loss

• 作者: Taiki Takahashi
• 来源期刊: 应用数学(英文)
• 学科: 数学
• 关键词: SOCIAL Discounting Altruism NEUROECONOMICS ECONOPHYSICS SOCIOPHYSICS Tsallis’ Statistics
• 年，卷（期）: yysxyw_2013,（3）
• 页码范围: 445-448
• 页数: 4页
• 分类号: O1

摘要

Social discounting has been attracting attention in behavioral psychology, econophysics, and neuroeconomics. Several mathematical models have been proposed for social discounting;exponential discounting, hyperbolic discounting, a q-exponential discounting model based on Tsallis’ statistics. In order to experimentally examine the mathematical characteristics of the q-exponential social discounting models for gain and loss in humans, we estimated the parameters of the q-exponential social discounting models by assessing the points of subjective equality (indifference points) at seven social distances. We observed that gain was more steeply social-discounted than loss. Usefulness of the q-exponential social discounting model in social physics, econophysics, and cultural neuroeconomics are discussed.