@booklet {ilanguttman-atnatocem2004,
	title = {Adding the Noise: A Theory of Compensation-Driven Earnings Management},
	howpublished = {Discussion Papers},
	year = {2004},
	month = {3},
	abstract = {Empirical evidence suggests that the distribution of earnings reports is discontinuous. This is puzzling since the distribution of true earnings is likely to be continuous. We present a model that rationalizes this phenomenon. In our model, managers report their earnings to rational investors, who price the stock accordingly. We assume that misreporting is costly, but since managers{\textquoteright} compensation is based on the stock price, they may want to manipulate the reported earnings. The model fits into the general framework of signaling games with a continuum of types. The conventional equilibrium in this game is fully revealing (e.g. Stein 1989), and does not explain the observed discontinuity of earnings reports. We show that a partially pooling equilibrium exists in such games as well, and it generates an endogenous discontinuity in reports. By pooling reports of different types, the informed manager introduces "home-made" noise into his report. The resulting vagueness enables the manager to reduce the manipulation costs. While a priori pooling looks manipulative, it is actually a way to reduce earnings management. The empirical implications of our model relate earnings management and price reaction to price- and earnings-based compensation, growth opportunities of the firm, underlying volatility, and the stringency of accounting rules. We show that this equilibrium arises due to stock-based compensation of the managers, and does not arise when they are paid based on their earnings directly. Finally, we present a general version of this model describing the behavior of biased experts in many real-life situations.},
	url = {/files/dp355.pdf},
	author = {Ilan Guttman, Ohad Kadan and Eugene Kandel}
}
