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This paper examines the causal impact of diagnostic efficiency on the COVID-19 pandemic in China. Using an instrumental …
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Banking efficiency is an essential catalyst in reducing uncertainty during a crisis and stimulating post …-crisis economic growth. The heterogeneity in pre-crisis banking efficiency explains the differences in uncertainty — measured using …
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vital information to railway company management and policymakers by quantitatively assessing the cost efficiency of railway … operations. We examine the efficiency of Japanese listed railway companies by applying stochastic frontier analysis to their … operational and financial data from 2005 to 2020. Then, we classify the companies into four groups by cost efficiency levels and …
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