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作者：Figlio, David; Rush, Mark; Yin, Lu
作者单位：Northwestern University; National Bureau of Economic Research; State University System of Florida; University of Florida
摘要：This article presents the first experimental evidence on the effects of live versus Internet media of instruction. Students in a large introductory microeconomics course at a major research university were randomly assigned to live lectures versus watching these same lectures in an Internet setting where all other factors ((e.g., instruction, supplemental materials)) were the same. We find modest evidence that live-only instruction dominates Internet instruction. These results are particularly...
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作者：Cheron, Arnaud; Hairault, Jean-Olivier; Langot, Francois
作者单位：Le Mans Universite; Universite Catholique de Lille; EDHEC Business School; Paris School of Economics; heSam Universite; Universite Pantheon-Sorbonne
摘要：This paper extends the job creation--job destruction approach to the labor market to take into account a deterministic finite horizon. As hirings and separations depend on the time over which investment costs can be recouped, the life-cycle setting implies age-differentiated labor-market flows. While search by the unemployed falls with age, the separation rate is rather U-shaped over the life cycle. Worker heterogeneity in the context of undirected search implies an intergenerational externali...
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作者：Rich, Robert; Tracy, Joseph
作者单位：Federal Reserve System - USA; Federal Reserve Bank - New York
摘要：This article examines the ex post flexibility of US labor contracts during the 1970--95 period by investigating whether unanticipated changes in inflation increase the likelihood of a contract being renegotiated prior to its expiration. We find empirical support for this hypothesis. Specifically, our results indicate that renegotiations are triggered principally by large and infrequent price shocks of either sign. When combined with evidence that ex ante contract durations are shorter during e...
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作者：Johnson, Matthew T.
摘要：In this article, I propose and estimate a dynamic model of education, borrowing, and work decisions of high school graduates. I examine the effect of relaxing borrowing constraints on educational attainment by simulating increases in the amount students are permitted to borrow from government-sponsored loan programs. My results indicate that borrowing constraints have a small impact on attainment: the removal of education-related borrowing constraints raises bachelor''s degree completion by 2....
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作者：Gicheva, Dora
作者单位：University of North Carolina; University of North Carolina Greensboro
摘要：This study establishes empirically a positive but nonlinear relationship between weekly hours and hourly wage growth. For workers who put in over 47 hours per week, 5 extra hours are associated with a 1% increase in annual wage growth. This correlation is not present when hours are lower. The relationship is especially strong for young professionals. Data on promotions provide evidence in support of a job-ladder model that combines higher skill sensitivity of output in higher-level jobs with h...
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作者：Jacob, Brian A.
作者单位：University of Michigan System; University of Michigan; National Bureau of Economic Research
摘要：In 2004, the Chicago Public Schools and the Chicago Teachers Union signed a new collective bargaining agreement that gave principals the flexibility to dismiss probationary teachers (those with fewer than 5 years of experience) for any reason and without the hearing process typical in many urban districts. Results suggest that the policy reduced annual teacher absences by roughly 10% and reduced the incidence of frequent absences by 25%. The majority of the effect was due to changes in the com...
