NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Jennifer L. Dlugosz

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Working Papers

February 2011Securitization without Adverse Selection: The Case of CLOs
with Efraim Benmelech, Victoria Ivashina: w16766
For nearly a decade prior to the collapse of structured finance markets in late 2007, securitization by collateralized loan obligations (CLOs) was a key source of capital for the high-yield corporate loan market. In this paper, we investigate whether securitization was associated with risky lending in the corporate loan market by examining the performance of individual loans held by CLOs. We employ two different datasets that identify loan holdings for a large set of CLOs and find that adverse selection problems in corporate loan securitizations are less severe than commonly believed. Controlling for borrowers’ credit quality, securitized loans perform no worse, and under some criteria even better, than unsecuritized loans of comparable credit quality. However, within a CLO portfolio, loan...
June 2009The Credit Rating Crisis
with Efraim Benmelech: w15045
Since June 2007, the creditworthiness of structured finance products has deteriorated rapidly. The number of downgrades in November 2007 alone exceeded 2,000 and many downgrades were severe, with 500 tranches downgraded more than 10 notches. Massive downgrades continued in 2008. More than 11,000 of the downgrades affected securities that were rated AAA. This paper studies the credit rating crisis of 2007-2008 and in particular describes the collapse of the credit ratings of ABS CDOs. Using data on ABS CDOs we provide suggestive evidence that ratings shopping may have played a role in the current crisis. We find that tranches rated solely by one agency, and by S&P in particular, were more likely to be downgraded by January 2008. Further, tranches rated solely by one agency are more likely...
April 2009The Alchemy of CDO Credit Ratings
with Efraim Benmelech: w14878
Collateralized Loan Obligations (CLOs) were one of the largest and fastest growing segments of the structured finance market, fueling the 2003-2007 boom in syndicated loans and leveraged buyouts. The credit crisis brought CLO issuance to a halt, and as a result the leveraged loan market dried up. Similar to other structured finance products, investors in CLOs rely heavily on credit rating provided by the rating agencies, yet little is known about CLO rating practices. This paper attempts to fill that gap. Using novel hand-collected data on 3,912 tranches of Collateralized Loan Obligations (CLO) we document the rating practices of CLOs and analyze their existing structures.
August 2004Large Blocks of Stock: Prevalence, Size, and Measurement
with Rudiger Fahlenbrach, Paul Gompers, Andrew Metrick: w10671
Large blocks of stock play an important role in many studies of corporate governance and finance. Despite this important role, there is no standardized data set for these blocks, and the best available data source, Compact Disclosure, has many mistakes and biases. In this paper, we document these mistakes and show how to fix them. The mistakes and bias tend to increase with the level of reported blockholdings: in firms where Compact Disclosure reports that aggregate blockholdings are greater than 50 percent, these aggregate holdings are incorrect more than half the time and average holdings for these incorrect firms are overstated by almost 30 percentage points. We also demonstrate that our fixes are economically and statistically significant in an analysis of the relationship between firm...

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