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5

臺大管理論叢

27

卷第

4

(2013) documented that institutional investors acquire significant positive (negative)

abnormal returns from the block trades of net buy (sell). Consequently, QFIIs’ trading

activities can provide credible signals to other investors and generate significant impacts on

market returns for large cap stocks (Lu, Fang, and Nieh, 2012; Lien et al., 2013). QFIIs’ role

is consistent with the informational advantage of sophisticated investors and continues to

play an important role in the Taiwan stock market. Meanwhile, it is likely that the majority of

QFIIs’ trading strategies in Taiwan can be classified as short-term oriented investing

behavior.

2.2 Related Research

Income smoothing can be denoted as the utilization of accounting discretion to reduce

earnings variability (Fudenberg and Tirole, 1995). In past years, the accounting community

has given the issue of income smoothing a high priority. For example, Graham, Harvey, and

Rajgopal (2005) documented that more than 96% of the respondents indicate that they prefer

a smooth earnings path, which is one of the most important factors for income smoothing.

Fudenberg and Tirole (1995) model managerial earnings management behavior and suggest

that concern of job security creates an incentive for managers to smooth earnings. The

implication from their theory suggests that when current earnings performance is poor,

managers have an incentive to shift future earnings into the current period in order to

decrease the possibility of dismissal. In this setting, managers borrow earnings from the

future to artificially embellish current earnings performance upward in difficult times. On the

other side, when current earnings are relatively high, managers may make accounting

choices effectively by saving current earnings for the possible use in the future. Empirical

studies (e.g., DeFond and Park, 1997) support the theoretical explanation of Fudenberg and

Tirole (1995). We note that the smoothed earnings may be more informative if the accrual-

based system better reflects fundamental performance than do other choices (Tucker and

Zarowin, 2006). In this informative school, Subramanyam (1996) finds that discretionary

accruals are positively associated with stock returns, future earnings, and operating cash

flows, suggesting that discretionary accruals may communicate information about future

benefits. Tucker and Zarowin (2006) further suggest that income smoothing is one way for

managers to communicate private information and support the notion that income smoothing

could enhance earnings informativeness. However, extant studies suggest alternative

explanation for managers’ income smoothing behavior, i.e., firms may seek to temporarily

deceive investors by opportunistically manipulating accounting numbers and then to