This API offers historical prices for equities trading on more than 50 global exchanges. As some of those who have commented on my use of the total cash yield (where I add buybacks to dividends) in my equity risk premium posts have noted (with a special thank you to Michael Green of Ice Farm Capital, who has been gently persistent on this issue), the jump in cash returned may be exaggerated in this graph, because we are not netting out stock issues made by US companies in each year.
The second is if the firm takes cash that would have been directed to superior investment opportunities (where the return on capital > cost of capital) and uses it to buy back stock; this requires that the company also face a capital constraint, imposed either internally (because the company does not like to raise new financing) or externally (because the company is prevented from raising new financing).
The table reports on the capital expenditures and net capital expenditures, as a percent of enterprise value and invested capital, at companies that buy back stock and contrasts them with those that do not, and finds that at least in 2013, companies that bought back stock had more capital expenditures, as a percent of invested capital and enterprise value.
Barring the one scenario where companies that buy back stock stop making value-destructive investments, almost every other positive story about buybacks is one about value transfers: from taxpayers to equity investors (when debt is used by an under levered firm to finance buybacks) and from one set of stockholders to another (when a company buys back under valued stock).
As someone who believes that corporate finance at many companies is governed by inertia (we buy back stock because that is what we have always done…) and me-too-ism (we buy back stock because every one else is doing it…), I agree that there are value destroying buybacks, but I also believe that collectively, buybacks make far more sense than dividends as a way of returning cash to equities.