The Climate Risk Premium: How Uncertainty Affects the Social Cost of Carbon
研究了气候变暖、变暖对消费的影响以及消费增长随机冲击这三类不确定性如何提高碳的社会成本，在数值模拟中不确定性使200年碳社会成本增加超过20%。
I analyze the marginal value of reducing greenhouse gas emissions (the “social cost of carbon”) under uncertainty about warming, under uncertainty about how much warming reduces consumption, and under stochastic shocks to consumption growth. I theoretically demonstrate that each of these sources of uncertainty increases the social cost of carbon under conventional preferences. In a calibrated numerical implementation, uncertainty increases the 200-year social cost of carbon by more than 20%. Uncertainty about the consumption impacts of warming contributes the most to this premium and makes the social cost of carbon sensitive to impacts even after 2400.