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Journal of Finance Vol. 73 No. 4 2018

The Dynamics of Financially Constrained Arbitrage

Denis Gromb1,2,3,4,5; Dimitri Vayanos6

1 Bank of Italy · 2 Center for Economic and Policy Research · 3 Université Fédérale de Toulouse Midi-Pyrénées · 4 Université Paris Dauphine-PSL · 5 Stanford University · 6 Ecole des Hautes Etudes Commerciales du Nord

Abstract

We develop a model in which financially constrained arbitrageurs exploit price discrepancies across segmented markets. We show that the dynamics of arbitrage capital are self‐correcting: following a shock that depletes capital, returns increase, which allows capital to be gradually replenished. Spreads increase more for trades with volatile fundamentals or more time to convergence. Arbitrageurs cut their positions more in those trades, except when volatility concerns the hedgeable component. Financial constraints yield a positive cross‐sectional relationship between spreads/returns and betas with respect to arbitrage capital. Diversification of arbitrageurs across markets induces contagion, but generally lowers arbitrageurs' risk and price volatility.

DOI
10.1111/jofi.12689
Volume
73
Issue
4
Pages
1713-1750
Language
en
Sources
openalex bibtex:phds-export.bib crossref

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