People at the top of an occupational ladder earn more partly because they have spent time on lower rungs, where they have learned something. But what precisely do they learn? There are two contrasting views: First, the Bandit model assumes that people are different, that experience reveals their...

We model research as a signal on an unknown parameter of a technology. We distinguish applied from basic research and show that firms in the same industry can optimally choose different research portfolios, and that basic research can seem to have a higher rate of return than applied research,...

Most of our productive knowledge was handed down to us by previous generations. The transfer of knowledge from the old to the young is therefore a cornerstone of productivity growth. We study this process in a model in which the old sell knowledge to the young - - old workers train the young,...

This paper explores a one-agent Bayesian model of learning by doing and technological choice. To produce output, the agent can choose among various technologies. The beneficial effects of learning by doing are bounded on each technology, and so long-run growth in output can take place only if...

We look at the decision of the government or "central planner" in the allocation of scarce governmental resources for tertiary education, as well as that for the individual. We provide estimates of the net present values, or cost and benefits. These include costs of tertiary education; the...

Using new data matching remittances and monthly payroll disbursals, we demonstrate how fluctuations in migrants' earnings in the United Arab Emirates affect their remittances. We consider three types of income fluctuations that are observable by families at home: seasonalities, weather shocks...

In 2011, a reform in the United Arab Emirates allowed any employer to renew a migrant's visa upon contract expiration without written permission from the initial employer. We find that the reform increased incumbent migrants' earnings and firm retention of these workers. This occurs despite an...

We estimate the individual returns to temporary migration programs using a randomized experiment with several thousand job seekers in India applying to guest worker jobs in the United Arab Emirates (UAE). Working with construction companies and the UAE Ministry of Labor, we randomized job offers...

Growth theory offers two plausible explanations of growth. One stresses the supply of productive ideas and holds that the industrial revolution had to wait until we had thought up enough inventions to lift us into the era of modern growth. It says, roughly, that the growth of living standards...

Product-recall data and information on stock-price reactions to recalls are used to estimate the value of reputation in a model in which product quality is not contractible. A recall is the result of a product defect that signals low effort. The recall triggers a reduction in the firm's product...