你要是和老图都是未婚，我一定喊你们“在一起”！！

【 在 luckyna (luckyna) 的大作中提到: 】
: top期刊的最新研究
: MacLeod, W. Bentley, and Miguel Urquiola. 2021. "Why Does the United States Have the Best Research Universities? Incentives, Resources, and Virtuous Circles." Journal of Economic Perspectives, 35 (1): 185-206.
: Around 1875, the US had none of the world’s leading research universities; today, it accounts for the majority of the top-ranked. Many observers cite events surrounding World War II as the source of this reversal. We present evidence that US researc
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