主观贴现率差异对集体物品产出的影响

通过引入集体物品的初始存量和衰竭速率两个参数,建立跨期均衡模型,考察个体主观贴现率差异程度对集体行动合作产出的影响,讨论参数条件发生变化时的贴现率异质性效应.结论表明:个体对未来收益(损失)越重视(即主观贴现率越大),集体物品的合作生产越容易维系;且初始存量和衰竭速率构成了集体物品自发供给的必要条件.

On the Effect of Subjective Discount Rate Differences to the Collective Goods Output

By the introduction of initial stock and depletion rate parameters towards collective goods,the paper models over-period equilibrium formation,and examines the influence of individual subjective discount rate heterogeneity to the voluntary supply of collective action production,then discusses discount rate heterogeneity effect vary with the parametrical condition.The research results show that the more valued future income(loss),the easier cooperative production of collective goods,and in particular,initial stock and depletion rate make up the must for voluntary supply of collective goods.