Arnold Kling on the Sergey Brin effect and inequality:
Income inequality in the United States consists of two gaps. The first gap is an upper-lower gap, between those with a college education and those without. The second is an upper-upper gap, between those with high incomes and those with extraordinarily high incomes. The upper-lower gap reflects changes in the structure of the economy. New technologies place a premium on cognitive ability. Harvard University economists Claudia Goldin and Lawrence Katz have dubbed this “skill-biased technological change.” In today’s economy, more value added comes from knowledge work, and relatively less comes from unskilled labor.
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