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Low voter turnout? Increasing household income may help 智库出版物
2018
作者:  Randall Akee;  William E. Copeland;  E. Jane Costello;  John Holbein;  Emilia Simeonova
收藏  |  浏览/下载:3/0  |  提交时间:2022/09/22
Traffic congestion  congestion pricing  traffic pollution  Pollution  respiratory disease  asthma  Air pollution  Sweden  Stockholm  Traffic  children’s health  
Storm crowds: Evidence from Zooniverse on crowd contribution design 智库出版物
2017
作者:  Sandra Barbosu;  Joshua Gans
收藏  |  浏览/下载:1/0  |  提交时间:2022/09/22
Medicaid  Us  childhood health  asthma  Adhd  Chronic illness  fee-for-service  Managed care