We develop an RBC model of the stock market with heterogenous firms. Shares value rests on the rent extracted from proprietary technology. Closed form solutions are provided for the value of each firm and for their aggregate, and for each share's beta, under weak assumptions on the shock...

There is a large body of literature stressing the importance of developing financial markets, including stock markets, to enhance countries' growth. I argue that the relationship between stock markets and growth is exaggerated and that the simple act of opening a formal stock market is not a...

If firms purchase capital up to the point where there is no further marginal benefit, and the firms' securities are equal in value to the capital, then the market value of securities measures the quantity of capital. I explore the implications of this hypothesis using data from U.S. non-farm,...