STOCK-PRICE VOLATILITY, ORDINARY DIVIDENDS, AND OTHER CASH FLOWS TO SHAREHOLDERS

This paper shows that the results of variance-bound tests depend on how cash distributions to shareholders are measured. As in prior studies, we find apparent evidence of excess volatility when a narrow definition of cash flow (dividends only) is applied. However, we are unable to reject the hypothesis of market efficiency when the cash flow measure also includes share repurchases and takeover distributions in addition to ordinary cash dividends.