期刊快享| American Economic Review [ Volume 114, October 2024]

文章预览

01 The Social Costs of Keystone Species Collapse: Evidence from the Decline of Vultures in India Eyal Frank, Anant Sudarshan Abstract ： Scientific evidence has documented we are undergoing a mass extinction of species, caused by human activity. However, allocating conservation resources is difficult due to scarce evidence on damages from losing individual species. This paper studies the collapse of vultures in India, triggered by the expiry of a patent on a painkiller. Our results suggest the functional extinction of vultures—efficient scavengers that removed carcasses from the environment—increased human mortality by over 4 percent because of a large negative shock to sanitation. We quantify damages at $69.4 billion per year. These results suggest high returns to conserving keystone species such as vultures. 02 Public Discourse and Socially Responsible Market Behavior Björn Bartling, Vanessa Valero, Roberto A. Weber, Lan Yao Abstract ： We investigate the causal impact of p ………………………………