In this paper we study how the ongoing transition to newer technologies, what we refer to as dynamic structural change, in a doubly-differentiated R&D-based economy can generate both higher economic growth and a slowdown of climate change, thus, creating a win-win situation known as double dividend. We first consider the unregulated decentralised economy and show that ongoing structural change can lead to lower environmental damages than the economy with a fixed structure. Next, we consider an emission tax differentiated across sectors which raises economic growth and reduces emissions in the economy. Our results indicate that promoting transition to newer technologies indeed may serve as a partial substitute to conventional abatement policy options.

在本文中，我们研究了在以差异化的研发为基础的经济中，不断向新技术过渡的过程，即所谓的动态结构变化，如何既可以促进更高的经济增长又可以减缓气候变化，从而创造一个双赢的局面。获胜情况称为双倍红利。我们首先考虑不受管制的权力下放经济，并表明正在进行的结构改革比固定结构的经济对环境的损害要小。接下来，我们考虑不同部门之间的排放税，这可以提高经济增长并减少经济中的排放。我们的结果表明，促进向更新技术的过渡确实可以部分替代传统的减排政策。