Knowledge that Transforms

A half-century ago, Joseph Schumpeter (1950 Chapters 5–8) presented a vision of modern capitalism in which monopolies are common but frequently swept aside by a “perennial gale of creative destruction” (p. 84). This gale is driven not by price competition, but by “competition from the new commodity, the new technology ... competition which strikes not at the margins of the profits of the existing firms but at their foundations and their very lives” (p. 84). I focus here on the personal-computer (PC) software (hereafter simply “software”) industry, which resembles this vision. I discuss some important issues this industry poses for antitrust policy and, in the final section, illustrate with examples from the Microsoft case.

Eight Reasons Why Real versus Nominal Interest Rates Is the Most Important Concept in Macroeconomics Principles Courses by Peter E. Kennedy. Published in volume 90, issue 2, pages 81-84 of American Economic Review, May 2000

According to the IMF, in the mid-1970’s approximately 85 percent of developing countries had pegged exchange-rate arrangements. Since then, the situation has changed drastically; today most developing countries have either managed floats or flexible exchange rates. Argentina, Hong-Kong, and a few others may persevere with their currency boards; additional nations may well imitate them. And movements toward common currencies, a la the European Union, may gain strength here and there. Nonetheless, it seems clear that the political and financial prerequisites to adopt such hard pegs are extremely stringent. New attempts are the exception, not the rule. The question for most emerging market economies is no longer “To float or not to float?” but “How to float?” In this note we review some key issues in defining the right answer to this question.

The ability of an incumbent firm to deter entry by writing exclusionary contracts with customers has been a subject of contention in the antitrust literature. The courts ’ concern with such exclusionary contracts has been challenged by those who argue that an incumbent, faced with buyers whose interest is to promote entry and competition, would have to pay buyers more for the inclusion of exclusionary provisions than it could possibly gain from exclusion. In a provocative article, Eric B. Rasmusen et al. (1991) (henceforth, RRW) have argued that an incumbent may in fact be able to exclude rivals profitably using such contractual provisions

This paper uses a new database on foreign aid to examine the relationships among foreign aid, economic policies, and growth of per capita GDP. We find that aid has a positive impact on growth in developing countries with good fiscal, monetary, and trade policies but has little effect in the presence of poor policies. Good policies are ones that are themselves important for growth. The quality of policy has only a small impact on the allocation of aid. Our results suggest that aid would be more effective if it were more systematically conditioned on good policy. (JEL F350, O230, O400)

Productivity Levels and International Competitiveness between Canadian and U.S. Industries by Frank C. Lee and Jianmin Tang. Published in volume 90, issue 2, pages 176-179 of American Economic Review, May 2000

The large literature that analyzes the impact of immigration on the United States typically focuses on measuring the labor market and fiscal consequences. This literature, however, has ignored the impact of immigration on other sectors of society. One sector that is of great interest is the American university, where the share of nonresident aliens in the graduate student population rose from 5.5 percent in 1976 to 10.5 percent in 1996. Despite the rapid growth in the number of foreign students, little is known about their impact on the educational process. Nevertheless, undergraduates frequently complain that the lack of English language proficiency among many foreign-born Teaching Assistants affects adversely their understanding of the material. This paper addresses the question that is at the heart of these complaints: Do foreign-born teaching assistants have an adverse impact on the scholastic achievement of American undergraduates? To provide empirical evidence on this issue, I use data drawn from a survey of undergraduates enrolled in economics principles classes at a large public university. The data suggest that foreign-born Teaching Assistants have an adverse impact on the class performance of undergraduate students.

This paper investigates the Bayesian decision-theoretic foundations of the Wall Street adage that `timing is everything'. One might think that a `small' risk-neutral trader wishes to act immediately upon any private information he possesses. I begin with a counterintuitive nding that trade timing doesn't matter for an Arrow security, as one's expected return per dollar invested is a martingale. This timing irrelevance discovery motivates an analysis of general compound securities. While timing there is ambiguous, I nd that natural monotone likelihood ratio assumptions on both private and public information restore the intuition that one should trade with all due dispatch.(This abstract was borrowed from another version of this item.)

This paper investigates the impact on bank stock prices of emerging market currency crises and bailouts. The stock market distinguishes between banks with exposure to a crisis country and other banks. In general, banks with exposures to a crisis country are affected adversely by currency events and positively by bailouts. Other banks are mostly unaffected by events in countries experiencing a crisis. The paper uses the impact of the LTCM crisis on bank stock prices to put the emerging market events in perspective. The LTCM crisis had no significant contagion effects in the banking sector either, but banks that participated in the LTCM rescue experienced negative stock returns when the rescue was announced.