Existence of equilibrium in OLG economies with increasing returns
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- 作者：Jean-Marc Bonnisseau ; Lalaina Rakotonindrainy
- 关键词：Overlapping generations model ; Increasing returns to scale ; Loss ; free pricing rules ; Equilibrium ; Existence
- 刊名：Economic Theory
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：63
- 期：1
- 页码：111-129
- 全文大小：
- 刊物类别：Business and Economics
- 刊物主题：Economic Theory/Quantitative Economics/Mathematical Methods; Game Theory, Economics, Social and Behav. Sciences; Microeconomics; Public Finance;
- 出版者：Springer Berlin Heidelberg
- ISSN：1432-0479
- 卷排序：63
文摘
We consider a standard overlapping generations (OLG) economy with a simple demographic structure where a new cohort of agents appears at each period and whose economic activity is extended over two successive periods, and finitely many firms may be active. The production possibilities are described by a sequence of production set-valued mappings and the main innovation comes from the fact that we allow for increasing returns to scale of more general type of non-convexities. To describe the behavior of the firms, we consider loss-free pricing rules, which cover the case of the average pricing rule, the competitive behavior when the firms have convex production sets, and the competitive behavior with quantity constraints à la Dehez–Drèze. We prove the existence of an equilibrium under assumptions, which are at the same level of generality than the ones for the existence in an exchange OLG economy.