EFFECTS OF ELECTRIFICATION ON THE COAL INDUSTRY’S PRODUCTION AND DISTRIBUTION: EVIDENCE FROM 1900s JAPAN
Keyword(s):
The Us
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This study examines how electrification affected the economic performance of the Japanese coal mining industry in the 1900s. Using difference-in-differences estimation, we find that electrification considerably improved labor productivity and increased the number of workers, but had statistically zero effects on miners’ wages and caused a significant decline in the labor income share. We explain this phenomenon by using the “superstar firm” hypothesis, which provides a consistent explanation of the recent declines in labor income share in the US economy.