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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title Financial intermediation and the welfare theorems in incomplete markets
Organization Unit
Authors
  • Marc Oliver Bettzüge
  • Thorsten Hens
  • Michael Zierhut
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Economic Theory
Publisher Springer
Geographical Reach international
ISSN 0938-2259
Volume 73
Number 2-3
Page Range 457 - 486
Date 2022
Abstract Text In production economies with incomplete markets, shareholders disagree about the objective of the firm. We show that a weak financial intermediary, who is unable to complete markets, can offer just enough spanning to resolve this disagreement. The intermediary is limited to offering one customized contract per consumer. Knowledge of demand functions is sufficient for offering the right contracts. Once agreement among shareholders is reached, productive efficiency is restored, which in turn permits a Pareto efficient market outcome. This result shows that the first welfare theorem does not depend on complete spanning, but merely on institutions that provide the right span. However, this cannot be said about the second welfare theorem: For some wealth distributions, equilibria with transfers fail to exist due to nonconvexities caused by market incompleteness.
Free access at DOI
Official URL https://link.springer.com/article/10.1007/s00199-020-01294-w
Digital Object Identifier 10.1007/s00199-020-01294-w
Other Identification Number merlin-id:19549
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Keywords Economics and Econometrics
Additional Information Financial Economics