WHY SOCIETY NEEDS “IRRATIONAL EXUBERANCE”—AND WHAT THIS MEANS FOR VALUATIONS AND MONETARY POLICY

Reuven Brenner

Journal of Applied Corporate Finance, 2000, vol. 13, issue 2, 112-117

Abstract: Despite all the talk of a New Economy and the revolutionary import of the Internet, this article suggests that there is nothing really new under the sun. When Christopher Columbus was building the ships for his expeditions to the East Indies, only the vaguest estimates could be made of their potential value. At this stage, nobody knew if Columbus would be able to manage the crossing, when the ships would return, and what cargo they would eventually carry. In this sense, Columbus's venture bears a striking resemblance to many of today's Internet stocks. This paper raises and attempts to answer a number of interesting questions. For example, how do risky ventures with very high fixed (startup) costs but very low expected variable costs raise the capital necessary to fund the fixed costs? What role should government (and, in particular, monetary) policy play in encouraging (or discouraging) funding for such ventures? And how does one establish the value of such ventures when there is little or no revenue and, in some cases, no clearly defined product? The answer to the first question is investor enthusiasm–or, in Alan Greenspan's terms, “irrational exuberance.” Irrational exuberance plays a very important economic role in giving entrepreneurs access to the cheap financing necessary to fund ventures with heavy startup costs. Indeed, “irrational exuberance” may be the best solution for financing large fixed costs, not only because it is a private (as opposed to a government‐financed) solution, but because it gives investors direct access to the risks and rewards of promising investment opportunities. Before the recent “democratization” of capital markets, such ventures would have been funded by large corporations if not government agencies. As for the third question, this paper suggests there is only one useful way to estimate the value of ventures without revenues or products. The author provides a back‐of‐the‐envelope, “Fermitype” valuation method that is based on the principle of “human capital arbitrage.” For those Internet startups that lure top executives away from established firms with large grants of stock options but relatively low salaries, there is a “breakeven level” for the future stock price that can be calculated using a fairly modest amount of information about the executive's past and current compensation plans. For outside investors, such movements of human capital provide what is perhaps the most reliable basis for estimating the value of the firm.

Date: 2000
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