Nicoletta Batini, Mr. Simon Black, Ms. Oana Luca, and Ian Parry
The Netherlands has ambitious greenhouse gas emission reduction targets for the future - to cut them by 49 percent below 1990 levels by 2030 and 95 percent by 2050. These targets and the likely new EU-wide targets under the recent EU Green Deal entail a rapid acceleration in decarbonization. This paper discusses the government’s mitigation strategy and advances several recommendations to complement and reinforce that strategy and to achieve better alignement of the effective carbon prices across sectors. The paper discusses alternatives to make the recently-introduced industry carbon levy more effcient and recomends the use of revenue-neutral feebate schemes in industry, transportation, buildings, and agriculture. For power generation, it recommends eliminating taxes on residential and industrial electricity, supplementing the coal phaseout plan with an increase in the CO2 emissions floor price. The impacts of these reforms on consumption would be low and relatively evenly split across the income distribution.
Ms. Florence Jaumotte, Weifeng Liu, and Warwick J. McKibbin
Background paper prepared for the October 2020 IMF World Economic Outlook. This paper provides a detailed presentation of the simulation results from the October 2020 IMF World Economic Outlook chapter 3 and an additional scenario with carbon pricing only for comparison with the comprehensive policy package where green investments were also included. This paper has greatly benefitted from continuous discussions with Oya Celasun and Benjamin Carton on the design of simulations; contributions from Philip Barrett for part of the simulations; and research support from Jaden Kim. We also received helpful comments from other IMF staff. All remaining errors are ours. McKibbin and Liu acknowledge financial support from the Australian Research Council Centre of Excellence in Population Ageing Research (CE170100005).
In short, yes. I use a multi-region integrated assessment model with fuel-specific endogenous technical change to examine the impact of Europe and China reducing emissions to zero by mid-century. Without international technological diffusion this is insufficient to avoid catastrophic climate change. But when innovation can diffuse overseas, long-run temperature increases are limited to 3 degrees. This occurs because policy not only encourages green innovations but also dissuades dirty innovations which would otherwise spread. The most effective policy package in emissions-reducing regions is a research subsidy funded by a carbon tax, driven in the short term by the direct effect of the carbon tax on the composition of energy, and later by innovation induced by research subsidies. Green production subsidies are ineffective because they undermine incentives for innovation.