Bank Financing: The Disappearance of Interbank Lending

"The Panic of 2007-2008 was a run on the sale and repurchase market place (the 'repo' market), which is a very large, brusk-term market that provides financing for a broad range of securitization activities and fiscal institutions." Gary Gorton and Andrew Metrick, August 2009.

Retail depository financial institution runs are mostly a thing of the past. Every jurisdiction with a banking system has some class of deposit insurance, whether explicit or implicit. So, about customers can remainder assured that they will exist compensated even should their bank neglect. But, while small and medium-sized depositors are extremely unlikely to experience the need to run, the same cannot be said for large short-term creditors (whose claims usually exceed the cap on deposit insurance). Every bit we saw in the crunch a decade ago, when they are funded by curt-term borrowing, not only are banks (and other intermediaries) vulnerable, the unabridged fiscal system becomes frail.

This belated realization has motivated a large shift in the structure of bank funding since the crunch. Ii complementary forces have been at piece of work, one coming from within the institutions and the other from the authorities overseeing the system. This post highlights the biggest of these changes: the spectacular fall in uncollateralized interbank lending and the smaller, merely notwithstanding dramatic, decline in the use of repurchase agreements. The latter—as well called repo—amounts to a brusk-term collateralized loan (for a primer on repo, run across here).

We first with the post-obit nautical chart showing changes in banks' liability structure. The red line plots the fraction of domestically chartered commercial banking company assets funded by interbank loans. After having trended modestly lower in the decade to 2008, the level began to collapse. Today, the amount of interbank lending is minimal, bookkeeping for less than 0.3% of full assets. During this aforementioned flow, the fraction of bank assets funded past deposits (the blackness line) rebounded sharply. After hitting a low of 59% in mid-2008, deposits now fund more than 76% of bank assets. While not displayed on the chart, we likewise annotation that total commercial banking system avails increased by more 40% in the past decade, so the level of deposits rose by more than than 80%. (Meanwhile, the FDIC reports that the insured fraction of domestic deposits roughshod modestly, from 63% to 59%.)

Fraction of assets of domestically-chartered commercial banks funded by interbank loans and by deposits (Percent), 1990-2017

Source: Board of Governors of the Federal Reserve, H.8. Note that, as of the beginning of 2018, the Federal Reserve no longer reports interbank loans separately.

Source: Lath of Governors of the Federal Reserve, H.eight. Note that, as of the beginning of 2018, the Federal Reserve no longer reports interbank loans separately.

Not but has interbank funding virtually disappeared, but the extent of repo funding has declined equally well. The following chart decomposes the use of repo equally a funding vehicle by the blazon of private intermediary, including U.Due south. chartered banks (gray), securities dealers and brokers (bluish), and the sum of other nonbank financial institutions and foreign bank branches (orange). Afterwards peaking at well-nigh $iv.3 trillion in early on 2008, aggregate repo funding by private financial firms has fallen to $two.three trillion today. Furthermore, the fraction of U.Due south. chartered depository financial institution assets funded by repo (the black line) has tumbled from more than 6% in 2008 to about i%. Calculation the two pieces together, we see that from mid-2008 to the third quarter of 2017 the fraction of depository financial institution funding accounted for by the combination of interbank borrowing and repo has plunged from 10.five% to i.4%.

Repurchase agreements by type of private intermediary: level (billions of dollars, left scale) and fraction of assets (percent, right scale), 1990-3Q 2017

Notes: We have removed the monetary authority (Fed) itself from these numbers. We included foreign bank branches in the

Notes: We have removed the monetary say-so (Fed) itself from these numbers. We included strange banking company branches in the "Non-banking company" category. Source: Financial Accounts of the United States, z.i; Tables L.108, 50.111, L.112, and L.130.

To be certain, we take made some specific decisions in our pick of repo data, but we doubt that our choice affects the large-movie conclusion that private reliance on repo funding has declined substantially over the past decade. In improver to the Financial Accounts, which we employed, at that place are two alternative sources for information: the Federal Reserve Bank of New York and the Securities Industry and Financial Markets Clan (SIFMA). For the period when all three are available, they all exhibit patterns like to those in the chart. Furthermore, all 3 likely understate the size of the repo market place: Copeland, Martin and Walker draw how the focus on master dealers and tri-party repo results in significant underreporting. They continue to estimate that the overall repo market was fully 50 percentage larger (or almost $half dozen trillion) earlier the 2008 Lehman defalcation than we bear witness here. But, since it arises from under-reporting of repo collateralized by securities other than a narrow class of loftier-quality liquid assets and of bilateral repo between counterparties other than primary dealers, we suspect that this understatement has waned over time. (Regime should human activity expeditiously to fill these and other gaps in data on securitized financing.)

What accounts for the pass up in reliance on these fundamental forms of short-term funding? First, as nosotros noted in our word of the decline in LIBOR, banks are much less willing to lend to one some other on an unsecured footing. Having awakened to the true scale of counterparty risks during the crisis—especially from large, circuitous, opaque intermediaries—they simply view information technology as also risky.

Second, changes in capital and liquidity requirements appear to be playing a key role. Not merely are capital charges more than comprehensive and higher nether Basel III (see here), but the liquidity coverage ratio (LCR) makes curt-term interbank lending very costly. Specifically, the LCR specifies that, when a bank issues an unsecured wholesale liability of 30 days or less, information technology must hold between 25 and 100 percent of the amount in the form of either key bank reserves or sovereigns. Furthermore, since retail deposits tend to exist sticky, the design of the LCR encourages their use as a primary funding source.

Together, these changes in internal adventure management practice and regulatory structure virtually surely account for the fact that interbank lending has disappeared while deposits now account for more than 70% of total funding. (In 2016, fifty-fifty Goldman Sachs got into the act when it started GS Banking company U.s.a..)

Equally for the autumn in repo funding, 2 things have changed. First, it is role of a broader decline in what Gorton and Metrick refer to as securitized banking. This includes things like special-purpose vehicles (SPVs) created by banks to take assets off their balance sheet and fund them using asset-backed commercial paper (ABCP). Non only has the ABCP marketplace well-nigh disappeared, but banking concern supervisors now crave banks to consolidate SPVs and comparable entities onto their balance sheet. 2d, since capital requirements are now much more stringent both in their definition of what constitutes capital and in their coverage of risky avails, banks confront higher costs for expanding their balance sheet. Because the add-on of a repo-funded nugget increases the overall size of the bank's balance sheet, information technology raises the probability that the simple unweighted leverage ratio requirement will demark, if it does not already do so.

Finally, every bit a contempo report from the Committee on the Global Financial System (CGFS) describes in particular, central banking company monetary policies take a clear impact on the volume of repo. First, the abundance of excess reserves reduces banks' need to seek liquidity through repo. 2d, large-scale asset purchases have reduced the volume of high-quality collateral available (as i example, less than one-10th of German government bonds now float privately). And third, the relatively flat yield bend that these policies intentionally produce makes it less profitable for banks to use short-term borrowing to finance long-term assets.

All of this leads u.s. to conclude that the changes in the regulatory arrangement have improved the resilience of the system in fabric ways. Not only is capital higher, but liabilities appear less runnable. While securities dealers and brokers still fund nearly half of their avails using short-term secured borrowing, commercial bank funding appears to be much more stable than information technology was a decade ago, reducing the risk of contagion.

Have we gone also far in penalizing brusk-term funding? Are banks now declining to provide sufficient credit to the real economy? We strongly incertitude it. Get-go, overall lending continues to abound. Bank credit today is nearly fifty% higher than at the end of 2007. Second, banks remain profitable. In 2017, the average return on equity ROE) for the largest banks (with assets in excess of $250 billion) was 8.5%. The higher pre-crunch ROE (in the mid-teens) for these behemoths in part reflected the funding subsidy they obtained from implicit government guarantees. Third, by boosting banks' perceived resilience, the shift to longer-term, more stable funding also may have supported their equity market place valuations. As of the latest FDIC global capital index in mid-2017, the price-to-book ratio for the largest U.S. banks (the viii designated as global systemically important banks, or Thou-SIBs) averaged 1.28, upwardly past fifty% since the stop of 2012.

The bottom line: Reducing the reliance on volatile short-term funding—without undermining the supply of credit—is an intended event of post-crunch regulatory reforms. While no ane could be sure banks would react this way, they did (every bit did some de facto banks). Going forrad, changes in regulation could surely modify this result, only for now, we seem to be on the correct track.