Balancing Expenditures on Mitigation of and Adaptation to Climate Change : An Exploration of Issues Relevant to Developing Countries

Lecocq, Franck ; Shalizi, Zmarak

World Bank, Washington, DC

关键词: ABATEMENT COST FUNCTIONS;    ADAPTATION;    ADVERSE EFFECTS;    ADVERSE IMPACTS;    AGRICULTURAL OUTPUT;   

DOI  :  10.1596/1813-9450-4299
RP-ID  :  WPS4299

学科分类：社会科学、人文和艺术（综合）

来源: World Bank Open Knowledge Repository

【 摘 要 】

Although climate policies have been sofar mostly focused on mitigation, adaptation to climatechange is a growing concern in developed and developingcountries. This paper discusses how adaptation fits into theglobal climate strategy, at the global and national levels.To do so, a partial equilibrium optimization model ofclimate policies-which includes mitigation, proactiveadaptation (ex ante), and reactive adaptation (ex post)-issolved without and with uncertainty. Mitigation, proactiveadaptation, and reactive adaptation are found to begenerally jointly determined. Uncertainty on the location ofdamages reduces the benefits of "targeted"proactive adaptation with regard to mitigation and reactiveadaptation. However, no single country controls globalmitigation policies, and budget constraints might make itdifficult for developing countries to finance reactiveadaptation, especially if climate shocks affect the fiscalbase. Rainy-day funds are identified as a supplementalinstrument that can alleviate future budget constraintswhile avoiding the risk of misallocating resources when thelocation of damages is uncertain.