It nevertheless remains true that, in most countries for which long-run data are available, stocks have out-performed bonds – by a factor of roughly five over the twentieth century.9 This can scarcely surprise us. Bonds, as we saw in Chapter 2, are no more than promises by governments to pay interest and ultimately repay principal over a specified period of time. Either through default or through currency depreciation, many governments have failed to honour those promises. By contrast, a share is a portion of the capital of a profit-making corporation. If the company succeeds in its undertakings, there will not only be dividends, but also a significant probability of capital appreciation. There are of course risks, too. The returns on stocks are less predictable and more volatile than the returns on bonds and bills. There is a significantly higher probability that the average corporation will go bankrupt and cease to exist than that the average sovereign state will disappear. In the event of a corporate bankruptcy, the holders of bonds and other forms of debt will be satisfied first; the equity holders may end up with nothing. For these reasons, economists see the superior returns on stocks as capturing an 'equity risk premium' – though clearly in some cases this has been a risk well worth taking.
( Niall Ferguson )
[ The Ascent of Money: A ]
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