“…Following prior studies (e.g., Chen, ; Mendenhall, ), I defined earnings persistence as the first‐order autocorrelation coefficient of seasonally differenced quarterly earnings ( SDE ). Chen () derived a firm‐specific time‐varying earnings persistence measure using the following model: where SDE iq − 1 is firm i 's seasonally differenced quarterly earnings defined as the seasonal change (between quarter q‐1 and q‐5 ) in quarterly earnings before extraordinary items (# IBQ ) divided by the quarter‐end total assets (# ATQ ); F j , i , q − 2 is firm i 's j th persistence determinant in quarter q‐2 (definitions of these variables are presented in the ). Earnings persistence for quarter q is calculated as .…”