“dark side” of wholesale funding
The Dark Side of Bank Wholesale Funding
Rocco Huang
Federal Reserve Bank of Philadelphia
Lev Ratnovski
international Monetary Fund
November 2008
Abstract
Commercial banks increasingly use short-term wholesale funds to supplement traditional retail deposits.
Existing literature mainly points to the “bright side” of wholesale funding: sophisticated financiers can monitor banks, disciplining bad ones but refinancing solvent ones.
This paper models a “dark side” of wholesale funding.
In an environment with a costless but imperfect signal on bank project quality (e.g., credit ratings, performance of peers), short-term wholesale financiers have lower incentives to conduct costly information acquisition, and instead may withdraw based on negative but noisy public signals, triggering inefficient cient liquidations.
We show that the “dark side” of wholesale funding dominates the “bright side” when bank assets are more arm’s length and tradable (leading to more relevant public signals and lower liquidation costs): precisely the attributes of a banking sector with securitizations and risk transfers.
The results shed light on the recent financial turmoil, explaining why some wholesale financiers did not provide market discipline ex-ante and exacerbated liquidity risks ex-post.
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costless but possibly very noisy public signals about bank asset quality. Their incentives
to run may o¤set or even dominate the incentives to monitor which were highlighted by
Calomiris and Kahn (1991). In principle, the risk of wholesale runs can be reduced by
assigning them lower creditor seniority. However banks may have contrasting private
incentives: we show that the use of senior wholesale funds generates interest rate savings
for banks. Moreover, making short-term wholesale funds sufficiently junior may be
outright impossible due to the sequential service constraint."
"Note that the model applies also to nancial institutions that operate without retail
depositors and use wholesale funds only. Conicts of interest that we describe exist
whenever liquidation payo¤s are (for contractual or behavioral reasons) skewed across
di¤erent classes of creditor claimants, e.g., short-term vs. long-term wholesale funds, or
collateralized vs. unsecured wholesale funds. For example, Bear Stearns was financed
by both long-term and short-term wholesale funds, with most of the short-term funds
collateralized by marketable assets. Our model explains why secured short-term lenders,
being e¤ectively more senior, had insu¢ cient incentives to acquire information on the
banks fundamentals, and were tempted to walk out upon noisy negative news. Had
short-term wholesale funds been unsecured or with longer contractual maturity (imply-
ing lower e¤ective seniority), their providers would have had higher incentives to monitor
and would have been less likely to abruptly stop funding Bear Stearns."
"In the years leading up to the current credit market turmoil, why didnt the whole-
sale nanciers, who had the capacity to monitor, exert su¢ cient market discipline
on banks, and why did they exacerbate liquidity risks once the crisis was on the
way?
The analyses of our model provide some new explanations."
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