Integrated Risk Management for Defined Benefit Pensions: Models and Metrics

Pension Research Council Working Paper, PRC WP2013-10

23 Pages Posted: 8 Oct 2013

Date Written: September 2013

Abstract

The Pension Benefit Guaranty Corporation (PBGC) insures private sector defined benefit (DB) pension plans when an employer becomes insolvent and is unable to pay its pension liabilities. In principle, the insurance premiums collected by PBGC should be sufficient to cover potential losses; this would ensure that PBGC could pay the insured benefits of terminated pension plan without additional external funding (e.g. from taxpayers). Therefore, the risk exposure of the PBGC from insuring DB pension plans arises from the probability of employer insolvencies; and the terminating plans’ funding status (the excess of the value of insured plan liabilities over plan assets). This paper focuses on only the second component, namely the impact of plan underfunding for the operation of the PBGC. When a DB plan is fully funded, the PBGC’s risk exposure for an ongoing plan is low even if the plan sponsor becomes insolvent. Thus the questions most pertinent to the PBGC are what key risk factors can produce underfunding in a DB plan, and how can these risk factors be quantified? We explore the most important risk factors that produce DB pension underfunding, namely investment risk and liability risk. Both are interrelated and must be considered simultaneously in order to quantify the risk exposure of a DB pension plan. We propose that an integrated risk management model (an Integrated Asset/Liability Model) can help better understand DB pension plan funding risk. We also examine the Pension Insurance Modeling System developed by the PBGC in terms of its own use of some of the building blocks of an integrated risk management model.

Suggested Citation

Maurer, Raimond, Integrated Risk Management for Defined Benefit Pensions: Models and Metrics (September 2013). Pension Research Council Working Paper, PRC WP2013-10, Available at SSRN: https://ssrn.com/abstract=2337118 or http://dx.doi.org/10.2139/ssrn.2337118

Raimond Maurer (Contact Author)

Goethe University Frankfurt ( email )

Grüneburgplatz 1
Frankfurt am Main, 60323
Germany

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