Mortgage Modification Activity—Recent Developments
This very detailed article focuses on recent trends in modification activity in the non-agency securitization market. The authors focus primarily on two trends: the increased share of principal reduction modifications and the increased share of second and subsequent modifications. They show that principal reductions result in higher modification success rates than other modification types, even controlling for pay relief. They also show that second and subsequent modifications have higher re-default rates than first modifications. Finally, the authors focus on the variations in modification activity and modification success rates among subprime servicers.
The Determinants of Subprime Mortgage Performance Following a Loan Modification
We examine the evolution of mortgage modification terms obtained by distressed subprime borrowers during the recent housing crisis and the effect of the various types of modifications on the subsequent loan performance. Using the CoreLogic Loan Performance dataset that contains detailed loan level information on mortgages, modification terms, second liens, and home values, we estimate a discrete time proportional hazard model with competing risks to examine the determinants of post-modification mortgage outcomes. We find that principal reductions are particularly effective at improving loan outcomes, as high loan-to-value ratios are the single greatest contributor to re-default and foreclosure. However, any modification that reduces total payment and interest (P&I) reduces the likelihood of subsequent re-default and foreclosure. Modifications that increase the loan principal—primarily through capitalized interest and fees—are more likely to fail, even while controlling for changes in P&I.
Direct conversion pulsed UWB transceiver architecture
Ultra-wideband (UWB) communication is an emerging wireless technology that promises high data rates over short distances and precise locationing. The large available bandwidth and the constraint of a maximum power spectral density drives a unique set of system challenges. This paper addresses these challenges using two UWB transceivers and a discrete prototype platform.