Showing 51 - 60 of 118
We document the transmission of social distancing practices from the United States to Mexico along migrant networks during the early 2020 Covid-19 pandemic. Using data on pre-existing migrant connections between Mexican and U.S. locations and mobile-phone tracking data revealing social...
Persistent link: https://www.econbiz.de/10012270252
We document a causal effect of conservative Fox News Channel in the United States on physical distancing during COVID-19 pandemic. We measure county-level mobility covering all U.S. states and District of Columbia produced by GPS pings to 15-17 million smartphones and zip-code-level mobility...
Persistent link: https://www.econbiz.de/10012387898
We document a causal effect of conservative Fox News Channel in the United States on physical distancing during COVID-19 pandemic. We measure county-level mobility covering all U.S. states and District of Columbia produced by GPS pings to 15-17 million smartphones and zip-code-level mobility...
Persistent link: https://www.econbiz.de/10012436802
Persistent link: https://www.econbiz.de/10012406654
In this work, according to integrated pest management principles, a class of predator–prey system with state-dependent impulsive effects is put forward. In this model, the control strategies by releasing natural enemies and spraying pesticide at different thresholds are considered. The...
Persistent link: https://www.econbiz.de/10010870626
Based on a continuous-time model of quasi-hyperbolic discounting, this paper provides an analytically tractable framework of entrepreneurial firms’ investment and capital structure decisions with time-inconsistent preferences. We show that the impact of time-inconsistent preferences depends...
Persistent link: https://www.econbiz.de/10010860085
Intra-urban human mobility is investigated by means of taxi trajectory data that are collected in Shanghai, China, where taxis play an important role in urban transportation. From the taxi trajectories, approximately 1.5 million trips of anonymous customers are extracted on seven consecutive...
Persistent link: https://www.econbiz.de/10010989741
In classical Laplacian image sharpening, all pixels are processed one by one, which leads to large amount of computation. Traditional Laplacian sharpening processed on CPU is considerably time-consuming especially for those large pictures. In this paper, we propose a parallel implementation of...
Persistent link: https://www.econbiz.de/10010939888
Economy-wide shocks affect demand, supply, and intermediary sectors simultaneously. We dissect the impact of the Covid-19 pandemic on international trade by combining information from customs records, smartphone-based human mobility, and container ship port calls. We find that local disruptions...
Persistent link: https://www.econbiz.de/10015097072
Persistent link: https://www.econbiz.de/10005945344