過去的文獻顯示兩種修飾盈餘的方法，可裁決性應計項目與衍生性商品之間存在替代關係。但在2006年之後，台灣實施了第34號公報，其規定了公平價值與避險會計的相關規範，使得我們想去探討兩種修飾盈餘方法間的關係是否受到影響。我們使用了台灣五十的成分公司但去除金融公司做為我們的樣本，期間為2000年至2011年共12年的資料，我們發現在第34號公報實施之後，衍生性商品和應計項目間的替代關係逐漸地減弱；而且我們也發現在第34號公報實施之後，公司的盈餘波動度會因為衍生性商品而顯著地改變。總地來說，我們認為會計制度的重大改變會影響收益平緩的方法及盈餘波動。

There are two methods to income smoothing in the past literature, discretionary accruals and derivatives. The relationship between the discretionary accruals and derivatives is substitute. However, after 2006, Taiwan implemented SFAS No. 34, which relating to fair value and hedge accounting, so we wanted to explore the relationship between the two kinds of modification of income smoothing. We use the component companies of “Taiwan Fifty” but remove financial companies out of our sample. The period of our sample is from 2000 to 2011. We found that after the implementation of SFAS No.34, the relationship between derivatives and accruals gradually weakened. We also found that after the implementation of SFAS No.34, the earnings volatility of companies significantly changed. In general, we believe that significantly change in the accounting rules will affect income smoothing and earnings volatility.

壹. 緒論 ---------------------------------------------------------- 1
貳. 文獻回顧與假說發展
　　衍生性商品之會計規範 ------------------------------------------ 5
　　假說發展 ------------------------------------------------------ 7
參. 研究方法
　　資料與樣本選擇 ----------------------------------------------- 10
　　可裁決性應計項目 --------------------------------------------- 10
　　Panel Data – Fixed Effect ---------------------------------------- 11
肆. 實證結果
　　敘述統計量---------------------------------------------------- 13
　　第34號公報與盈餘管理 ---------------------------------------- 19
　　第34號公報與盈餘波動度 -------------------------------------- 20
伍. 結論 --------------------------------------------------------- 24
參考文獻 --------------------------------------------------------- 25

Allayannis, G., and J. Weston. 2001. The use of foreign currency derivatives and firm
market value. Review of Financial Studies 14: 243–276.
Asdrubali, P., and S. Kim. 2008. Incomplete intertemporal consumption smoothing
and incomplete risksharing. Journal of Money Credit and Banking 40: 1521–1531.
Barton, J. 2001. Does the use of financial derivatives affect earnings management
decisions? The Accounting Review 76: 1–26.
Bergstresser, D., and T. Philippon. 2006. CEO incentives and earnings management:
Evidence from the 1990s. Journal of Financial Economics 80: 511–529.
Chen, C.L., and H.S. Fan, and Y.M. Yang. 2014. The effects of corporate governance
and accounting rule changes on derivatives usage. Review of Derivatives Research 17:323–353
Choi, J. J., C. X. Mao, and A. D. Upadhyay. 2015. Earnings Management and
Derivative Hedging with Fair Valuation: Evidence from the Effects of FAS 133
The Accounting Review : July 2015, Vol. 90, No. 4, pp. 1437-1467
Cohen, D. A., A. Dey, and T. Z. Lys. 2008. Real and accrual-based earnings
management in the pre- and post-Sarbanes-Oxley periods. The Accounting Review 83: 757–787.
DeFond, M. L., and C. W. Park. 1997. Smoothing income in anticipation of future earnings. Journal of Accounting and Economics 23: 115–139.
Finnerty, J., and D. Grant. 2002. Alternative approaches to testing hedge effectiveness under SFAS No. 133. Accounting Horizons 16: 95–108.
Fitch Ratings. 2009. More Disclosure of Derivatives Activities Needed. Available at:
http://www. seekingalpha.com/article/150849-more-disclosure-of-derivatives-activities-needed
Goel, A. M., and A. V. Thakor. 2003. Why do firms smooth earnings? Journal of Business 76: 151–193.
Graham, J. R., C. R. Harvey, and S. Rajgopal. 2005. The economic implications of corporate financial reporting. Journal of Accounting and Economics 40: 3–73.
Jones, J. 1991. Earnings management during import relief investigation. Journal of
Accounting Research 29: 193–228.
Kamin, J. Y., and J. Ronen. 1978. The smoothing of income numbers: Some empirical evidence on systematic differences among management-controlled and owner-controlled firms. Accounting, Organizations and Society 3: 141–157.
Kilic, E., G. J. Lobo, T. Ranasinghe, and S. Sivaramakrishnan. 2013. The impact of
SFAS 133 on income smoothing by banks through loan loss provisions. The Accounting Review 88: 233–260.
Lev, B., and S. Kunitzky. 1974. On the association between smoothing measures and
the risk of common stocks. The Accounting Review 49: 259–270.
Minton, B. A., and C. Schrand. 1999. The impact of cash flow volatility on discretionary investment and the costs of debt and equity financing. Journal of Financial Economics 54: 423–460.
Petersen, M. A., and S. R. Thiagarajan. 2000. Risk measurement and hedging: With
and without derivatives. Financial Management 29: 5–29.
Pincus, M., and S. Rajgopal. 2002. The interaction between accrual management and
hedging: Evidence from oil and gas firms. The Accounting Review 77: 127–160.
Plantin, G., H. Sapra, and H. S. Shin. 2008. Marking-to-market: Panacea or Pandora’s
box? Journal of Accounting Research 46: 435–460.
Roychowdhury, S. 2006. Earnings management through real activities manipulation.
Journal of Accounting and Economics 42: 335–370.
PricewaterhouseCoopers (PwC). 2009. Point of View: A Proposal to Improve Fair Value Accounting. Available at: http://www.pwc.com/en_US/us/point-of-view/assets/pwc_pointofview_fairvalue_ 012009.pdf
Ryan, S. G. 2007. Financial Instruments and Institutions. Hoboken, NJ: John Wiley & Sons.
Smith, C. W., and R. M. Stulz. 1985. The determinants of firms’ hedging policies. Journal of Financial and Quantitative Analysis 20: 391–405.
Teoh, S., I. Welch, and T. Wong. 1998. Earnings management and the long run market
performance of initial public offerings. Journal of Finance 53: 1935–1974.
Trueman, B., and S. Titman. 1988. An explanation for accounting income smoothing. Journal of Accounting Research 26 (Supplement): 127–154.
Tufano, P. 1996. Who manages risk? An empirical examination of risk management practices in the gold mining industry. Journal of Finance 51: 1097–1137.