The market value of U.S. corporations declined by 50% during 1973-74 and stagnated for the following 15 years. This abrupt decline in market valuations coincided with two technology shocks: (1) the start of the information technology revolution and (2) a sudden slowdown in productivity growth. I...

In the modern theory of growth, monopoly plays a crucial role both as a cause and an effect of innovation. Innovative firms, it is argued, would have insufficient incentive to innovate should the prospect of monopoly power not be present. This theme of monopoly runs throughout the theory of...

This paper provides a turnpike-like theorem for multidimensional, optimal-growth models, which holds for evey level of the discount factor. It is shown that when the short-run return fu nction of the reduced-form model satisfies a certain sufficient condi tion, then the resulting dynamics is of...

Intellectual property (IP) protection involves a trade-off between the undesirability of monopoly and the desirable encouragement of creation and innovation. Optimal policy depends on the relative strength of these two forces. We give a quantitative assessment of current IP policies. We focus...