Corporations possess a variety of mechanisms to distribute cash to their shareholders (Lee
and Rui, 2007). The most common forms of such distributions are cash dividends and share
repurchases. For decades, corporations employed cash dividends as a means of cash
distribution. The trend was reversed in the 1990s with the increasing popularity of share
repurchases, especially the Open Market Repurchases (OMRs) in US. The total amount
distributed under repurchase programs exceeded the cash dividends for the first time in 1998
in US (Grullon and Michaely, 2002). The adoption of Rule 10b-18 by SEC1 encouraged many
firms to repurchase their stock and the amount distributed under share repurchase programs
increased continuously and was $181.8 bn in 1998 as against $174.1 bn paid through cash
dividends (Grullon and Michaely, 2002).
The increasing use of repurchases over dividends has led to a belief that firms substitute
dividends by repurchases. Empirical studies in US show evidence for dividend substitution
effect (Grullon and Michaely, 2002; and Skinner, 2008), while in non-US countries no such
clear evidence is seen. For US firms only, Jagannathan et al. (2000) find contrary evidence
that firms use repurchases to pay out temporary or variable sources of cash flows, while
dividends are paid out of permanent cash flows, i.e., there is no substitution.
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