Econ Papers Daily / 期刊论文
有限市场数据的精确推断
Exact inference from finite market data
摘要
We derive conditions for individual choices and $$ \epsilon $$ ϵ -equilibrium prices to be inferred from a finite set of market data in the following sense: Although potential observations are infinite, inference can be attained and known to have been attained after a finite number of observations. While we first examine the case of observations on an individual’s demand at different prices and incomes, our primary focus is on equilibrium, where only profiles of individual endowments and associated equilibrium prices are observable. Our main result is that finite inference is possible in the equilibrium setting if one wants to infer either individual choices or the $$ \epsilon $$ ϵ -equilibrium correspondence.
中文摘要
摘要 本文推导了从有限市场数据推断个体选择与ε-均衡价格的条件，其含义如下：尽管潜在观测数据是无限的，但经过有限次观测后，推断不仅能够实现，且可被确认为已完成。我们首先考察了不同价格与收入水平下个体需求观测的情形，但主要关注均衡状态——此时仅能观测到个体禀赋组合及其对应的均衡价格。核心结论是：若需推断个体选择或ε-均衡对应关系，则在均衡框架下有限次推断是可行的。