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TESTING FOR INFORMATION ASYMMETRY IN THE MORTGAGE SERVICING MARKET by Helmi Jedidi and Georges Dionne

March 12, 2019

Abstract

 

Authors main objective is to test for evidence of information asymmetry in the mortgage servicing market. Does the sale of mortgage servicing rights (MSR) by the initial lender to a second servicing institution unveil any residual asymmetric information?

 

They analyze the originator’s selling choice of MSR using a large sample of U.S. mortgages that were privately securitized during the period of January 2000 to December 2013 (more than 5 million observations).

 

Their econometric methodology is mainly non-parametric and the main test for the presence of information asymmetry is driven by kernel density estimation techniques (Su and Spindler, 2013). They also employ the non-parametric testing procedure of Chiappori and Salanié (2000). For robustness, they present parametric tests to corroborate their results after controlling for observable risk characteristics, for econometric misspecification error, and for endogeneity issues using instrumental variables.

 

Their empirical results provide strong support for the presence of second-stage asymmetric information in the mortgage servicing market.

 

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