∗我们感谢Rema Hanna,Michael Greenstone,Amir Jina和Claire Palandri提供了对数据的访问。我们感谢芝加哥大学塔塔发展中心和贝克尔·弗里德曼学院提供的资金来支持这项工作。We thank Ben Balmford, Chris Bowden, Robin Burgess, Rhys Green, Ryan Kellogg, Koichiro Ito, John Janmaat, Charles Taylor, and Wen Wang, as well as the sem- inar and conference participants at the Indian Statistical Institute, BREN School at UC Santa Barbara, the LSE Workshop in Environmental Economics, the Department of Zo- ology at the University of Cambridge, the在LSE举行的环境周,NBER能源与环境经济学春季会议,加拿大资源与环境经济协会会议,心脏地带会议,南方经济协会会议,环境,污染和健康Aere Assa会议,斯坦福大学的生态与进化集团,Rosenkranz amskranz研讨会作为斯坦福大学,以及斯坦福大学的研究中心,以及佩斯福德大学,以及在佩斯福德大学的发展。有用的评论。我们感谢Sushant Banjara,Alina Gafanova,Sara Gerstner,Miriam Gold,Animesh Jayant,Simran Karla,Sahila Kudalkar,Sreya Majumder和Yuerong Zhang和Yuerong Zhang提供了出色的重新搜索帮助。所有剩余的错误都是我们自己的。此处包含和表达的陈述,发现,结论,观点和观点不一定是IQVIA Ltd.或其任何副业或子公司实体的陈述,结论和观点。
∗弗兰克:芝加哥大学(eyalfrank@uchicago.edu)。sudarshan:沃里克大学(anant.sudarshan@warwick.ac.uk)。我们感谢Rema Hanna,Michael Greenstone,Amir Jina和Claire Palandri提供了数据访问。我们感谢芝加哥大学塔塔发展中心和贝克尔·弗里德曼学院提供的资金来支持这项工作。We thank Ben Balmford, Chris Bowden, Robin Burgess, Rhys Green, Ryan Kellogg, Koichiro Ito, John Janmaat, Charles Taylor, and Wen Wang, as well as the seminar and conference participants at the Indian Statis- tical Institute, BREN School at UC Santa Barbara, the LSE Workshop in Environmental Economics, the Department of Zoology at the University of Cambridge, the Environment Week at LSE, the NBER Energy and Environmental Economics spring meeting, Canadian Resource and Environmental Economics Association conference, the Heartland confer- ence, the Southern Economic Association conference, the Environment, Pollution, and Health AERE ASSA session, the Ecology and Evolution Group at Stanford University, the Rosenkranz Symposium as Stanford University, as well as the Institute for Global Health and Development at Peking University and the Stanford Asia-Pacific Research Center for他们有用的评论。我们感谢Sushant Banjara,Alina Gafanova,Sara Gerstner,Miriam Gold,Animesh Jayant,Simran Karla,Sahila Kudalkar,Sreya Majumder和Yuerong Zhang和Yuerong Zhang提供了出色的研究帮助。所有剩余的错误都是我们自己的。本文中包含和表达的陈述,发现,结论,观点和观点不一定是IQVIA Ltd.或其任何附属或子公司实体的陈述,结论,观点和观点。
* Barwick:UW-Madison,NBER和CEPR,pbarwick@wisc.edu;权:芝加哥大学,hskwon@uchicago.edu;李:康奈尔大学,NBER和RFF,sl2448@cornell.edu; Zahur:皇后大学,nahim.zahur@queensu.ca。我们感谢在奥尔巴尼,亚利桑那州,布法罗,芝加哥,康奈尔州,达特·嘴,密苏里州,麻省理工学院,俄亥俄州,俄亥俄州,北京,宾夕法尼亚州,宾夕法尼亚州,普林斯顿,皇后皇后,皇后po,stan- ford,stan- ford,stan- ford,stan- ford,stan- ford,stan- Hunt All- cott, Abhi Ananth, Steve Berry, Chris Conlon, Ying Fan, Ken Gillingham, Penny Goldberg, Larry Goulder, Gautam Gowrisankaran, Phil Haile, Keith Head, Ken Hendricks, Kate Ho, JF Houde, Mark Jacobsen, Matt Kahn, Adam Ka- por, Jakub Kastl, Michael Keane, Chris Knittel, Ashley Langer, Jing Li, James MacKinnon, Thierry Mayer, Eugenio Miravete, Salvador Navarro, Aviv Nevo, Matthew Osborne, Jacquelyn Pless, Dave Rapson, Jon Scott, Alex Shcherba- chov, Jim Stock, Rich Sweeney, Chris Timmins, Bob Town, Min Wang, Matthijs Wildenbeest, Catherine Wolfram和Daniel Xu有用的评论。Yangsai Chen,Yulian Chen,Jack Collison,Chenyan Gong,Jason Huang,Binglin Wang,Feiyu Wang,Yucheng Wang,Yuerong Wang,Haohan Wenyan和Xin Zheng提供了出色的研究Ascancesance。Barwick和Li致谢国家科学基金会的资金支持(奖项2417173); Zahur承认社会科学与人文研究委员会的资助支持;权感谢芝加哥大学能源政策研究所 - 中国的资金支持。