How does your kindergarten classroom affect your earnings? Evidence from Project Star [0.03%]
同伴效应还是班级效应？——来自“星星计划”的证据
Raj Chetty,John N Friedman,Nathaniel Hilger et al.
Raj Chetty et al.
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 da...
David A Matsa
David A Matsa
This article analyzes the effect of competition on a supermarket firm's incentive to provide product quality. In the supermarket industry, product availability is an important measure of quality. Using U.S. Consumer Price Index microdata to...
Why do mothers breastfeed girls less than boys? Evidence and implications for child health in India [0.03%]
为什么母亲喂养女孩的母乳少于男孩？对印度儿童健康的影响及启示
Seema Jayachandran,Ilyana Kuziemko
Seema Jayachandran
Breastfeeding is negatively correlated with future fertility because nursing temporarily reduces fecundity and because mothers usually wean on becoming pregnant again. We model breastfeeding under son-biased fertility preferences and show t...
Roland Bénabou,Jean Tirole
Roland Bénabou
We develop a theory of moral behavior, individual and collective, based on a general model of identity in which people care about “who they are” and infer their own values from past choices. The model sheds light on many empirical puzzles...
The potato's contribution to population and urbanization: evidence from a historical experiment [0.03%]
土豆对人口和城市化的贡献——基于历史实验的证据
Nathan Nunn,Nancy Qian
Nathan Nunn
We exploit regional variation in suitability for cultivating potatoes, together with time variation arising from their introduction to the Old World from the Americas, to estimate the impact of potatoes on Old World population and urbanizat...
Spring cleaning: rural water impacts, valuation, and property rights institutions [0.03%]
春日大扫除：农村用水影响、评估及产权制度
Michael Kremer,Jessica Leino,Edward Miguel et al.
Michael Kremer et al.
Using a randomized evaluation in Kenya, we measure health impacts of spring protection, an investment that improves source water quality. We also estimate households' valuation of spring protection and simulate the welfare impacts of altern...
Family violence and football: the effect of unexpected emotional cues on violent behavior [0.03%]
家庭暴力与足球：意料之外的情绪线索对暴力行为的影响
David Card,Gordon B Dahl
David Card
We study the link between family violence and the emotional cues associated with wins and losses by professional football teams. We hypothesize that the risk of violence is affected by the “gain-loss” utility of game outcomes around a rat...
Adjustment Costs, Firm Responses, and Micro vs. Macro Labor Supply Elasticities: Evidence from Danish Tax Records [0.03%]
调整成本、公司反应以及微观与宏观劳动供给弹性差异：来自丹麦税收记录的证据
Raj Chetty,John N Friedman,Tore Olsen et al.
Raj Chetty et al.
We show that the effects of taxes on labor supply are shaped by interactions between adjustment costs for workers and hours constraints set by firms. We develop a model in which firms post job offers characterized by an hours requirement an...
WOMEN'S SUFFRAGE, POLITICAL RESPONSIVENESS, AND CHILD SURVIVAL IN AMERICAN HISTORY [0.03%]
美国历史上的妇女选举权、政治代表性与儿童生存率
Grant Miller
Grant Miller
Women's choices appear to emphasize child welfare more than those of men. This paper presents new evidence on how suffrage rights for American women helped children to benefit from the scientific breakthroughs of the bacteriological revolut...
Liran Einav,Amy Finkelstein,Mark R Cullen
Liran Einav
We provide a graphical illustration of how standard consumer and producer theory can be used to quantify the welfare loss associated with inefficient pricing in insurance markets with selection. We then show how this welfare loss can be est...