The Internet and Local Wages: A Puzzle
研究了1995至2000年间美国商业互联网技术投资与地方工资增长的关系，发现先进互联网技术仅与少数富裕、高教育、人口密集且IT密集型县的工资增长显著相关，解释了富裕县与其他县工资增长差异的一半以上。
How did the diffusion of the internet affect regional wage inequality? We examine the relationship between business investment in advanced internet technology and local variation in US wage growth between 1995 and 2000. We identify a puzzle. The internet is widespread, but the economic payoffs are not. Advanced internet technology is only associated with substantial wage growth in the 6 percent of counties that were already highly wealthy, educated, and populated and had IT-intensive industry. Advanced internet and wage growth appear unrelated elsewhere. Overall, advanced internet explains over half the difference in wage growth between already well-off counties and all others.