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作者：Kellogg, Ryan
作者单位：University of Michigan System; University of Michigan; National Bureau of Economic Research
摘要：This article examines learning-by-doing that is specific not just to individual firms but to pairs of firms working together in a contracting relationship. Using data from the oil and gas industry, I find that the productivity of an oil production company and its drilling contractor increases with their joint experience. This learning is relationship-specific: drilling rigs cannot fully appropriate the productivity gains acquired through experience with one production company to their work for...
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作者：Barreca, Alan I.; Guldi, Melanie; Lindo, Jason M.; Waddell, Glen R.
作者单位：Tulane University; State University System of Florida; University of Central Florida; University of Oregon; National Bureau of Economic Research
摘要：We reconsider the effect of very low birth weight classification on infant mortality. We demonstrate that the estimates are highly sensitive to the exclusion of observations in the immediate vicinity of the 1,500-g threshold, weakening the confidence in the results originally reported in Almond, Doyle, Kowalski, and Williams (2010).
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作者：Alvarez, Fernando E.; Lippi, Francesco; Paciello, Luigi
作者单位：University of Chicago; National Bureau of Economic Research; University of Sassari
摘要：We study the price-setting problem of a firm in the presence of both observation and menu costs. The firm optimally decides when to review costly information on the adequacy of its price. Upon each review, the firm chooses whether to adjust its price, one or more times, before the next price review. Each price adjustment entails paying a menu cost. The firm's choices map into several statistics: the frequency of price reviews, the frequency of price adjustments, the size distribution of price ...
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作者：Gentzkow, Matthew; Shapiro, Jesse M.
作者单位：National Bureau of Economic Research
摘要：We use individual and aggregate data to ask how the Internet is changing the ideological segregation of the American electorate. Focusing on online news consumption, offline news consumption, and face-to-face social interactions, we define ideological segregation in each domain using standard indices from the literature on racial segregation. We find that ideological segregation of online news consumption is low in absolute terms, higher than the segregation of most offline news consumption, a...
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作者：Fryer, Roland G., Jr.
作者单位：Harvard University; National Bureau of Economic Research
摘要：This article describes a series of school-based field experiments in over 200 urban schools across three cities designed to better understand the impact of financial incentives on student achievement. In Dallas, students were paid to read books. In New York, students were rewarded for performance on interim assessments. In Chicago, students were paid for classroom grades. I estimate that the impact of financial incentives on student achievement is statistically 0, in each city. Due to a lack o...
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作者：Ericson, Keith M. Marzilli; Fuster, Andreas
作者单位：Harvard University
摘要：While evidence suggests that people evaluate outcomes with respect to reference points, little is known about what determines them. We conduct two experiments that show that reference points are determined, at least in part, by expectations. In an exchange experiment, we endow subjects with an item and randomize the probability they will be allowed to trade. Subjects that are less likely to be able to trade are more likely to choose to keep their item. In a valuation experiment, we randomly as...
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作者：Felkner, John S.; Townsend, Robert M.
作者单位：University of Chicago; Massachusetts Institute of Technology (MIT)
摘要：A nation's economic geography can have an enormous impact on its development. In Thailand, we show that a high concentration of enterprise in an area predicts high subsequent growth in and around that area. We also find spatially contiguous convergence of enterprise with stagnant areas left behind. Exogenous physiographic conditions are correlated with enterprise location and growth. We fit a structural, micro-founded model of occupation transitions with fine-tuned geographic capabilities to v...
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作者：Baird, Sarah; McIntosh, Craig; Oezler, Berk
作者单位：George Washington University; University of California System; University of California San Diego; The World Bank
摘要：This article assesses the role of conditionality in cash transfer programs using a unique experiment targeted at adolescent girls in Malawi. The program featured two distinct interventions: unconditional transfers (UCT arm) and transfers conditional on school attendance (CCT arm). Although there was a modest decline in the dropout rate in the UCT arm in comparison with the control group, it was only 43% as large as the impact in the CCT arm at the end of the 2-year program. The CCT arm also ou...
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作者：Chetty, Raj; Friedman, John N.; Hilger, Nathaniel; Saez, Emmanuel; Schanzenbach, Diane Whitmore; Yagan, Danny
作者单位：Harvard University; National Bureau of Economic Research; University of California System; University of California Berkeley; Northwestern University
摘要：In Project STAR, 11,571 students in Tennessee and their teachers were randomly assigned to classrooms within their schools from kindergarten to third grade. This article evaluates the long-term impacts of STAR by linking the experimental data to administrative records. We first demonstrate that kindergarten test scores are highly correlated with outcomes such as earnings at age 27, college attendance, home ownership, and retirement savings. We then document four sets of experimental impacts. F...
