Smoothing Mechanisms in Defined Benefit Pension Accounting Standards: A Simulation Study

Cameron Morrill, Janet Morrill and Kevin Shand

Accounting Perspectives, 2009, vol. 8, issue 2, 113-145

Abstract: The accounting for defined benefit (DB) pension plans is complex and varies significantly across jurisdictions despite recent international convergence efforts. Pension costs are significant, and many worry that unfavorable accounting treatment could lead companies to terminate DB plans, a result that would have important social implications. A key difference in accounting standards relates to whether and how the effects of fluctuations in market and demographic variables on reported pension cost are “smoothed". Critics argue that smoothing mechanisms lead to incomprehensible accounting information and induce managers to make dysfunctional decisions. Furthermore, the effectiveness of these mechanisms may vary. We use simulated data to test the volatility, representational faithfulness, and predictive ability of pension accounting numbers under Canadian, British, and international standards (IFRS). We find that smoothed pension expense is less volatile, more predictive of future expense, and more closely associated with contemporaneous funding than is “unsmoothed” pension expense. The corridor method and market‐related value approaches allowed under Canadian GAAP have virtually no smoothing effect incremental to the amortization of actuarial gains and losses. The pension accrual or deferred asset is highly correlated with the pension plan deficit/surplus. Our findings complement existing, primarily archival, pension accounting research and could provide guidance to standard‐setters.

Date: 2009
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Citations: View citations in EconPapers (2)

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https://doi.org/10.1506/ap.8.2.2

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Persistent link: https://EconPapers.repec.org/RePEc:wly:accper:v:8:y:2009:i:2:p:113-145

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