The Effect of Fair-Value-Accounting on the Usefulness of Risk-Based Capital Ratio

公平價值會計對資本適足率有用性之影響

廖懿屏(Yi-Ping Liao)

《台灣金融財務季刊》 14卷2期 (2013/06) Pp. 1-17

摘要

近年來，公平價值會計已成主流，而過去文獻亦發現公平價值會計下之財務報表價值攸關性顯著提升。然而，財務報表之任務並不僅限於促進評價決策（Gjesdal ,1981; Sunder,1999），尤對保險業而言，更應有助瞭解公司財務健全程度；實務文獻（Chisnall, 2000; McEllin, 2006）認為，公平價值會計造成金融監理指標非必要（或不真實）之波動，可能導致其有用性降低。本研究利用臺灣保險業在2005－2011年間之資料，探討採用公平價值會計對資本適足率（Risk Based Capital ratio; RBC ratio）之影響，結果發現：（1）資本適足率對無清償能力風險之解釋能力在公平價值會計實施後，顯著下降；（2）就橫斷面角度分析，若公平價值變動損益占自有資本之比例越高，則該公司之資本適足率對無清償能力風險之解釋能力越低。

關鍵字

資本適足率 ； 公平價值會計 ； 無清償能力風險

並列摘要

One of the most critical policy debates in recent years has been the shift from historical-cost to fair-value accounting regime. While accounting literature has provided strong supportive evidence on the incremental valuation relevance of fair-value-based metrics, the insurance industry has shown an overwhelming disfavor on the application of full fair-value accounting. In specific, numerous studies argue that the great volatility of equities induced by constantly marking-to-market is artificial and bears no relationship to business reality (Chisnall, 2000; McEllin, 2006). Using data from Taiwan's insurers between 2005 and 2011, this study is the first to empirically investigate the impact of fair-value-accounting on the usefulness of regulatory capital-based metrics. Results indicate that: (1) the shift to fair-value-based accounting regime reduces the relevance of RBC ratios in explaining insurers' insolvency risks, and (2) the degree to which an insurer's capital is fair-value-oriented weakens the ability of its RBC ratios in summarizing information about insolvency risks.

並列關鍵字

Risk-based capital ratio ； Fair value accounting ； Insolvency risk

參考文獻

Huang, S. Y.,Wu, T. H.,Lin, C. A.(2009).The relationship between agency costs and risk management in Taiwan banking industry.Journal of Accounting and Finance Development.2,37-56.

Khan, U. (2009), “Does fair value accounting contribute to systematic risk in the banking industry?”available at http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1327596

McAllister, P.H. and D. McManus (1992), “Risk-the forgotten factor in bank efficiency studies,”Working paper, Board of Governors of the Federal Reserve System, Washington, DC.

Allen, F.,Carletti, E.(2008).Mark-to-market accounting and liquidity pricing.Journal of Accounting and Economics.45,358-378.

Ambrose, J. M.,Carroll, A.M.(1994)."Using Best's Ratings in Life Insurer Insolvency Prediction.Journal of Risk and Insurance.61,317-327.