At the same time, it would buffer consumers from oil-price volatility, thereby stabilizing their energy spending. Finally, and perhaps most important, such an approach would be more politically attractive than a fixed carbon tax, especially if it is introduced at a time of sharply declining oil prices.
因此，碳价将随时间的推移而增加——根据考虑气候约束的增长模型，这是最优结果。与此同时，这也能保护消费者面临油价波动，从而稳定能源支出。最后也许也是最重要的是，这一方针比固定碳税更具政治吸引力，特别是在油价暴跌时采用的话。