U.S. stock prices have increased much faster than gross domestic product (GDP) in the postwar period. Between 1962 and 2000, corporate equity value relative to GDP nearly doubled. In this paper, we determine what standard growth theory says the equity value should be in 1962 and 2000, the two...

In the fall of 1929, the market value of all shares listed on the New York Stock Exchange fell by 30 percent. Many analysts then and now take the view that stocks were then overvalued and the stock market was in need of a correction. Irving Fisher argued that the fundamentals were strong and the...

The value of U.S. corporate equities in the first half of 2000 was close to 1.8 times U.S. gross national income. Some stock market analysts have argued that the market is overvalued at this level. We use standard economic theory and find that the market is correctly valued. In theory, the...

We describe a model for calculating the optimal quantity of debt and then apply it to the U.S. economy. The model consists of a large number of infinitely-lived households whose saving behavior is influenced by precautionary saving motives and borrowing constraints. This model incorporates a...

We find that the welfare gains to being at the optimum quantity of debt rather than the current U.S. level are small, and, therefore, concerns regarding the high level of debt in the U.S. economy may be misplaced. This finding is based on a model of a large number of infinitely-lived households...