Carbon taxes—the favorite tool of climate economists—are often less effective at cutting emissions than simply subsidizing green energy.
April 1, 2026
Original Paper
<div> A Multi-Model Analysis of the Short-Run and Long-Run Effects of Environmental <span>Taxes and Renewable Energy on Decarbonization</span> </div>
SSRN · 6392378
The Takeaway
Economic theory suggests taxing pollution is the most efficient fix, but real-world data from OECD countries shows that taxes have 'weak and unstable' effects. In practice, direct investment in renewable energy does the heavy lifting while taxes are often ignored or bypassed.
From the abstract
<span>This study examines the effectiveness of economic instruments in reducing carbon dioxide emissions in OECD countries. The focus is on renewable energy consumption and environmental taxation. Previous studies often report that both instruments reduce emissions. However, much of the literature relies on single econometric methods. This may overlook cross country heterogeneity, cross sectional dependence, and dynamic adjustment effects. To address these limitations, this study applies a multi