American Economic Journal:
Microeconomics
ISSN 1945-7669 (Print) | ISSN 1945-7685 (Online)
Connecting Disconnected Financial Markets?
American Economic Journal: Microeconomics
vol. 13,
no. 1, February 2021
(pp. 252–82)
(Complimentary)
Abstract
In most financial markets, securities are traded in isolation. Such a disconnected market design can be inefficient if agents trade more than one security. I assess welfare effects of connecting markets by allowing orders for one security to depend on prices of other securities. I show that everyone trades identical amounts under both market structures if and only if the clearing prices are perfectly correlated or all are price-takers. Prices in disconnected markets might allow strategic traders to extract higher rents from nonstrategic traders. In expectation, connected markets generate higher welfare, but all markets become efficient as they grow large.Citation
Wittwer, Milena. 2021. "Connecting Disconnected Financial Markets?" American Economic Journal: Microeconomics, 13 (1): 252–82. DOI: 10.1257/mic.20180314Additional Materials
JEL Classification
- D44 Auctions
- D47 Market Design
- G10 General Financial Markets: General (includes Measurement and Data)
- H82 Governmental Property
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