Continuous Workout Mortgages: Efficient pricing and systemic implications

B-Tier
Journal: Journal of Economic Behavior and Organization
Year: 2019
Volume: 157
Issue: C
Pages: 244-274

Authors (4)

Shiller, Robert J. (not in RePEc) Wojakowski, Rafal M. (not in RePEc) Ebrahim, M. Shahid (not in RePEc) Shackleton, Mark B. (Lancaster University)

Score contribution per author:

0.503 = (α=2.01 / 4 authors) × 1.0x B-tier

α: calibrated so average coauthorship-adjusted count equals average raw count

Abstract

This paper studies the Continuous Workout Mortgage (CWM), a two in one product: a fixed rate home loan coupled with negative equity insurance, to advocate its viability in mitigating financial fragility. In order to tackle the many issues that CWMs embrace, we perform a range of tasks. We optimally price CWMs and take a systemic market-based approach, stipulating that mortgage values and payments should be linked to housing prices and adjusted downward to prevent negative equity. We illustrate that amortizing CWMs can be the efficient home financing choice for many households. We price CWMs as American option style, defaulting debt in conjunction with prepayment within a continuous time, analytic framework. We introduce random prepayments via the intensity approach of Jarrow and Turnbull (1995). We also model the optimal embedded option to default whose exercise is motivated by decreasing random house prices. We adapt the Barone-Adesi and Whaley (1987) (BAW) approach to work within amortizing mortgage context. We derive new closed-form and new analytical approximation methodologies which apply both for pricing CWMs, as well as for pricing the standard US 30-year Fixed Rate Mortgage (FRM).

Technical Details

RePEc Handle
repec:eee:jeborg:v:157:y:2019:i:c:p:244-274
Journal Field
Theory
Author Count
4
Added to Database
2026-01-29