本文旨在探討公司在面對前期盈餘門檻、正盈餘門檻及分析師預測盈餘門檻時，是否會為了達到或超越盈餘門檻而從事盈餘管理。本文以2000年至2005年台灣上市（櫃）公司為樣本，將裁決性應計項目、超額處分固定資產及超額投資損益當作盈餘管理之衡量變數，分別針對三項門檻建立迴歸模式。實證結果顯示：前期盈餘門檻與盈餘管理呈現正向顯著關係，代表公司會為了達到或跨越前期盈餘門檻而從事盈餘管理。在正盈餘門檻方面，其與盈餘管理之關係並不顯著，因此沒有足夠證據支持公司會為了達到正盈餘門檻而有盈餘管理之行為。而分析師預測盈餘門檻與盈餘管理也有顯著之正向關係，代表公司會為了避免實際盈餘低於分析師預期，而從事盈餘管理。
This paper aims to investigate whether firms manage earnings to meet or exceed each of three earnings thresholds: report positive profits, sustain recent performance, and analysts＇ expectations. The empirical tests are conducted using TEJ database for firms listed on the Taiwan Stock Exchange and Gretai Securities Market with fiscal year ends between 2000 and 2005. Discretionary accruals and excess gain on disposal of fixed assets and investments are used to proxy for the magnitude of earnings management（EM）. The empirical results show that there is a positive relation between positive profits threshold and EM. However, the relation between recent performance thresholds and EM is not statistically significant. Finally, we find analysts＇ expectations thresholds are positively related with the magnitude of earnings management.
