The Supply Side of CO2 with Country Heterogeneity*
研究了在各国碳税等气候政策存在差异的情况下，税收、成本和补贴变化对排放路径的影响，发现与假设各国相同的模型结果截然不同。
Abstract Several recent articles have analyzed climate policy, paying explicit attention to the fact that carbon resources are non‐renewable. In most of this body of literature, the economy is treated as a single unit and, in the context of climate policy, it seems reasonable to interpret this as the whole world. However, carbon taxes and other climate policies differ substantially across countries. With such heterogeneity, the effects on the emission paths of changes in taxes, costs, and subsidies might be very different from what is found for a hypothetical world of identical countries.