Firm heterogeneity, technology adoption and the spatial distribution of population: Theory and measurement
本文构建并估计了一个包含企业异质性和技术采用的经济地理模型，利用19世纪加拿大制造业蒸汽动力数据，发现蒸汽动力使生产率提高22.9%、福利提高4.9%，并解释了6.2%的人口增长差异。
Abstract This paper develops and estimates an economic geography model featuring firm heterogeneity and technology adoption. I derive statistics that measure the effect of a new technology on productivity, welfare and the spatial distribution of the population. The empirical application estimates these effects using 19th‐century establishment‐level data on steam power in the Canadian manufacturing sector and township‐level population data. The results indicate that the introduction of steam power increased productivity by 22.9% and welfare by 4.9%. Comparing the model‐predicted and observed township population growth, I find that steam power accounts for 6.2% of the variation in observed population growth during this period.