Our results indicate that the declining propensity to pay is a function of the changing composition of firms over time and not a declining propensity in individual firms themselves. In particular, the propensity to pay is greater than expected following the 2003 dividend tax cut. The decade a firm went public is also a major determinant of its initial payout policy. Finally, while the strength of the relation between earned/contributed capital and payout propensity declines across IPO decades, there is still a lifecycle effect — within a given IPO cohort, the likelihood of payout increases as firms age.

We examine the accuracy of various estimates of firms' repurchases of common stock used in earlier studies, and find high error rates in the most commonly used estimators. We also find that the procedure used to estimate open market share repurchases can significantly impact results. The Compustat-based measure, which is the most accurate, deviates from the actual number of shares repurchased by more than 30% in about 16% of the cases. We conclude that many studies should be revisited now that the SEC mandates disclosure of precise information about share repurchases in Forms 10-Q and 10-K.

The purpose of this paper is to evaluate the model used by Harris and Kemsley (J. Acc. Res. 37 (1999) 275), Harris et al. (J. Public Econ. 79 (2001) 569) and Collins and Kemsley (Acc. Rev. 75 (2000) 405), hereafter CHHK, and to investigate their empirical results. We demonstrate that the model underlying CHHK is flawed, and show that their interpretation of the data is incorrect. Finally, we find that after controlling for market to book ratio, Harris and Kemsley's first main result vanishes. In total, we reject CHHK's conclusions that equity prices are discounted for shareholder dividend taxes on retained earnings.