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Author:Koch, Christoffer 

Journal Article
Liquidity mismatch helps predict bank failure and distress

Liquidity mismatch?the risk of a bank being unable to fund increases in assets or meet its obligations as they come due?increased in the U.S. banking sector during the run-up to the financial crisis, especially at the largest institutions, contributing to bank failure and distress.
Economic Letter , Volume 10 , Issue 6 , Pages 1-4

In Uncertain Times, Fed Sometimes Turns to ‘Insurance’

In June 2019, a concept appeared in the Federal Open Market Committee (FOMC) minutes that had not shown up in FOMC minutes for 11 years—the idea of monetary policy “insurance.”
Dallas Fed Economics

Working Paper
Deposit interest rate ceilings as credit supply shifters: bank level evidence on the effects of Regulation Q

Shocks emanating from and propagating through the banking system have recently gained interest in the macroeconomics literature, yet they are not a feature unique to the 2008/09 financial crisis. Banking disintermediation shocks occured frequently during the Great Inflation era due to fixed deposit rate ceilings. I estimate the effect of deposit rate ceilings inscribed in Regulation Q on the transmission of federal funds rate changes to bank level credit growth using a historic bank level data set spanning half a century from 1959 to 2013 with about two million observations. Measures of the ...
Working Papers , Paper 1406

Working Paper
Why are big banks getting bigger?

The U.S. banking sector has become substantially more concentrated since the 1990s, raising questions about both the causes and implications of this consolidation. We address these questions using nonparametric empirical methods that characterize dynamic power law distributions in terms of two shaping factors ? the reversion rates (a measure of crosssectional mean reversion) and idiosyncratic volatilities of assets for different size-ranked banks. Using quarterly data for subsidiary commercial banks and thrifts and their parent bank-holding companies, we show that the greater concentration of ...
Working Papers , Paper 1604

Working Paper
The Effects of Audit Partners on Financial Reporting: Evidence from U.S. Bank Holding Companies

This paper uses confidential data on audit engagement partner names from regulatory filings of bank holding companies (BHC) to investigate whether partners display individual style that affects the financial reporting of the BHCs. We focus on loan loss provisioning. We construct an audit partner-BHC matched panel data set that enables us to track different partners across different BHCs over time. We employ two empirical approaches to investigate partner style. The first approach tests whether partner fixed effects are statistically significant in loan loss provisioning models. The second ...
Working Papers , Paper 2209

Working Paper
Mobility and Engagement Following the SARS-Cov-2 Outbreak

We develop a Mobility and Engagement Index (MEI) based on a range of mobility metrics from Safegraph geolocation data, and validate the index with mobility data from Google and Unacast. We construct MEIs at the county, MSA, state and nationwide level, and link these measures to indicators of economic activity. According to our measures, the bulk of sheltering-in-place and social disengagement occurred during the week of March 15 and simultaneously across the U.S. At the national peak of the decline in mobility in early April, localities that engaged in a 10% larger decrease in mobility than ...
Working Papers , Paper 2014

Working Paper
Payments Crises and Consequences

Banking-system shutdowns during contractions scar economies. Four times in the lastforty years, governors suspended payments from state-insured depository institutions. Suspensionsof payments in Nebraska (1983), Ohio (1985), and Maryland (1985), which wereshort and occurred during expansions, had little measurable impact on macroeconomic aggregates.Rhode Island’s payments crisis (1991), which was prolonged and occurred duringa recession, lengthened and deepened the downturn. Unemployment increased. Outputdeclined, possibly permanently relative to what might have been. We document these ...
Research Working Paper , Paper RWP 20-10

Working Paper
The rank effect for commodities

We uncover a large and significant low-minus-high rank effect for commodities across two centuries. There is nothing anomalous about this anomaly, nor is it clear how it can be arbitraged away. Using nonparametric econometric methods, we demonstrate that such a rank effect is a necessary consequence of a stationary relative asset price distribution. We confirm this prediction using daily commodity futures prices and show that a portfolio consisting of lower-ranked, lower-priced commodities yields 23% higher annual returns than a portfolio consisting of higher-ranked, higher-priced ...
Working Papers , Paper 1607

Dallas Fed Mobility and Engagement Index Gives Insight into COVID-19’s Economic Impact

To gain insight into the economic impact of the pandemic, we developed an index of mobility and engagement, based on geolocation data collected from a large sample of mobile devices.
Dallas Fed Economics

Journal Article
Bank Asset Concentration Not Necessarily Cause for Worry

U.S. banking assets have become substantially more concentrated within a few large institutions. However, decreasing relative rates of big-bank growth and of idiosyncratic volatility?an indicator of individual bank susceptibility to shocks and a resulting redistribution of assets?suggest a reduction in systemic financial system risk through contagion.
Economic Letter , Volume 12 , Issue 7 , Pages 1-4

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