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The Value of Big Data in a Pandemic
Kairong Xiao, May 05, 2021This article summarizes a study of the economic and public health effects of the Health Code app in China. By exploiting the staggered implementation of this technology across 322 Chinese cities, this study finds that the Health Code app significantly reduced virus transmission and facilitated economic recovery during the COVID-19 pandemic. A macroeconomic susceptible-infectious-recovered (SIR) model calibrated to the micro-level estimates shows...
Cash in the Darkness
Haohan Ren, Kemin Wang, Bohui Zhang, Fan Zhang, Jan 12, 2024Relying on a large dataset on cash withdrawals of over 165 million bank cards from China, we find a higher ratio of cash withdrawals late at night is associated with criminal activity.
What Gets Measured Gets Managed: Investment and the Cost of Capital
Zhiguo He, Guanmin Liao, Baolian Wang, Aug 09, 2023To improve capital allocative efficiency, starting in 2010, Chinese regulators switched from using return on equity to economic value added (EVA).
Increasing government transparency reduced pollution violations and improved air quality in China
Mengdi Liu, Mark Buntaine, Sarah Anderson, Bing Zhang, Sep 03, 2025Government transparency helps bridge gaps between environmental laws and actual practices, improving health and environmental quality broadly.
Microgiving with Digital Platforms
Xiheng Jiang, Jianwei Xing, Jintao Xu, Eric Zou, Nov 30, 2022“Microgiving,” a new model of fundraising made possible by digital technologies, is premised on the notion that charities can raise substantial funds by soliciting minuscule donations from many individuals.
