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Public Debt Dynamics During the Climate Transition

Mr. Daniel Garcia-MaciaMr. Waikei R LamWaikei LamAnh D. M. Nguyen

出版	International Monetary Fund, 2024-03-29
主題	Business & Economics / Exports & ImportsBusiness & Economics / Finance / GeneralBusiness & Economics / Economics / MacroeconomicsBusiness & Economics / Public FinanceBusiness & Economics / Economics / GeneralBusiness & Economics / Environmental EconomicsPolitical Science / Public Policy / Environmental Policy
ISBN	9798400270635
URL	http://books.google.com.hk/books?id=d9r-EAAAQBAJ&hl=&source=gbs_api
EBook	SAMPLE

註釋Managing the climate transition presents policymakers with a tradeoff between achieving climate goals, fiscal sustainability, and political feasibility, which calls for a fiscal balancing act with the right mix of policies. This paper develops a tractable dynamic general equilibrium model to quantify the fiscal impacts of various climate policy packages aimed at reaching net zero emissions by mid-century. Our simulations show that relying primarily on spending measures to deliver on climate ambitions will be costly, possibly raising debt by 45-50 percent of GDP by 2050. However, a balanced mix of carbon-pricing and spending-based policies can deliver on net zero with a much smaller fiscal cost, limiting the increase in public debt to 10-15 percent of GDP by 2050. Carbon pricing is central not only as an effective tool for emissions reduction but also as a revenue source. Delaying carbon pricing action could increase costs, especially if less effective measures are scaled up to meet climate targets. Technology spillovers can reduce the costs but bottlenecks in green investment could unwind the gains and slow the transition.