THE RELATIONSHIP BETWEEN THE ESTABLISHMENT AGE DISTRIBUTION AND URBAN GROWTH*
利用行政微观数据，研究发现增长更快的城市企业进入和退出率更高，且企业平均年龄更年轻；年龄分布差异解释了都市区就业增长变动的38%，而年轻企业的进入、成长和生存是主要驱动因素。
ABSTRACT This paper explores the relationship between urban growth and establishment-level dynamics through geographic variations in the establishment age distribution. Using administrative microdata, I find that faster growing cities have higher rates of entry and exit, and younger establishments, on average. The resulting differences in the age distribution account for 38 percent of the variation in MSA employment growth, leaving the majority due to differences among establishments of the same age. In particular, entry and the growth and survival of young establishments (aged five years or less) account for the majority of the variation in MSA growth.