Knowledge that Transforms

We model team formation as a random matching process influenced by agents’ preferences for team size and gender composition. We then test if the coauthorship pattern in articles published during 1991–2002 in three top economics journals is gender neutral, exploiting variation in female presence across subfields. Controlling for author, team, and field characteristics, we find that the gender gap in the propensity to coauthor with a woman increases in the presence of women in the subfield. We also find that women single author significantly more than men. These findings allow us to reject gender neutrality in team formation in economics.

Little is known about the mechanisms underlying the transfer of economic status between generations. This paper addresses the question of whether inter-generational correlations in health contribute to the perpetuation of economic status. We examine inter-generational correlations in birth weight, a key indicator of the health of newborns that we link to future educational attainment and earnings using a unique data set based on California births from 1960s to the present. We use names and birth dates to link the records of mothers and children. We also identify mothers who are siblings. We show that there is a strong intergenerational correlation in the birth weight of mothers and children, but that a measure of household income at the time of the mother's birth is also predictive of low birth weight and that there is an interaction between maternal low birth weight and poverty in the production of low birth weight. Together these findings suggest that intergenerational correlations in health could play a role in the intergenerational transmission of income. Parent's income affects child health, and health at birth affects future income.

Recent evidence suggests that employers acquire more precise information about a worker’s productivity the more time he or she spends in the labor market. The following question arises: Is learning symmetric, that is, do all employers have the same information about workers’ productivity, or is learning asymmetric, that is, does the current employer have superior information about workers’ productivity? This article develops a learning model with endogenous mobility that nests both learning hypotheses. It then proposes new tests for asymmetric employer learning. Overall, learning appears to be mostly symmetric, except possibly when the employees involved are college graduates.

This article considers how divorce law alters the incentives for couples to invest in their marriage, focusing on the impact of unilateral divorce laws on investments in new marriages. Differences across states between 1970 and 1980 provide useful quasi‐experimental variation with which to consider incentives to invest in several types of marriage‐specific capital: spouse’s education, children, household specialization, and home ownership. I find that adoption of unilateral divorce—regardless of the prevailing property‐division laws—reduces investment in all types of marriage‐specific capital considered except home ownership. In contrast, results for home ownership depend on the underlying property division laws.

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Technical analysis involves the prediction of asset price movements from inductive analysis of past movements. We establish a number of stylized facts, including that technical analysis is widespread in the foreign exchange market and that it may be profitable. We then analyze four arguments that have been put forward to explain this: that the market may not be fully rational; that technical analysis may exploit the influence of official interventions; that it may be an efficient form of information processing; and that it may inform on nonfundamental influences. While each may have some validity, the latter is the most plausible. As for the foreign exchange, it is almost as romantic as young love, and quite as resistant to formulae.

The authors discuss recent empirical research on how globalization has affected income inequality in developing countries. They begin with a discussion of conceptual issues regarding the measurement of globalization and inequality. Next, they present empirical evidence on the evolution of globalization and inequality in several developing countries during the 1980s and 1990s. The authors then examine the channels through which globalization may have affected inequality, discussing theory and evidence in parallel. They conclude with directions for future research.

This paper evaluates the effects of two subsidies targeted at schools with large proportions of disadvantaged pupils. The first scheme gives primary schools with at least 70% disadvantaged minority pupils extra funding for personnel. The second scheme gives primary schools with at least 70% pupils from any disadvantaged group extra funding for computers and software. The cutoffs provide a regression discontinuity design that we exploit in a local difference-in-differences framework. For both subsidies we find negative point estimates, which are for some outcomes significantly different from 0. Extra funding for computers and software seems especially detrimental for girls' achievement. The negative effects of extra funding for computers and software are consistent with results from other recent studies casting doubt on the efficacy of computers in schools.