Arbitrage Capital of Global Banks

Working Paper: NBER ID: w28658

Authors: Alyssa G. Anderson; Wenxin Du; Bernd Schlusche

Abstract: We show that the role of unsecured, short-term wholesale funding for global banks has changed significantly in the post-financial-crisis regulatory environment. Global banks mainly use such funding to finance liquid, near risk-free arbitrage positions—in particular, the interest on excess reserves arbitrage and the covered interest rate parity arbitrage. In this environment, we examine the response of global banks to a large negative wholesale funding shock as a result of the U.S. money market mutual fund reform implemented in 2016. In contrast to past episodes of wholesale funding dry-ups, we find that the primary response of global banks to the reform was a cutback in arbitrage positions that relied on unsecured funding, rather than a reduction in loan provision.

Keywords: money market mutual funds; wholesale funding; arbitrage

JEL Codes: E4; F3; G2


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Funding supply from money market funds (MMFs) (E51)Arbitrage capital (G19)
Funding supply from money market funds (MMFs) (E51)Interest on excess reserves (IOER) arbitrage position (E43)
Funding supply from money market funds (MMFs) (E51)Banks' loan provision (G21)

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