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    Hospital admission, facility-based isolation, and social distancing: An SEIR model with constrained medical resources. Author: Zhiyuan Chen, Guangwen KongAbstract:COVID-19 is a highly contagious disease that has spread to most countries at unprecedented transmission speed. Medical resources and treatments provided by the healthcare system help reduce the mortality rate and spread of COVID-19 by isolating infectious individuals. We introduce a modified SEIR model that considers individuals access to limited medi...
    The Folk Theorem for Repeated Games with Time-Dependent Discounting Author:Daehyun Kim, Xiaoxi LiAbstract: This paper defines a general framework to study infinitely repeated games with time-dependent discounting in which we distinguish and discuss both time-consistent and -inconsistent preferences. To study the long-term properties of repeated games, we introduce an asymptotic condition to characterize the fact that players become more and more patient; that i...
    To pollute or not to pollute: Political connections and corporate environmental performance   Abstract:We examine the influence of political connections on firms' environmental performance within the setting of China's Regulation 18, which prohibits government officials from taking business positions. Firms that lost political connections due to Regulation 18 experienced increases in environmental performance. This improvement is mainly driven by the tunneling channel rather than...
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