The WITCH Model. Structure, Baseline, Solutions
AbstractWITCH – World Induced Technical Change Hybrid – is a regionally disaggregated hard-link hybrid global model with a neoclassical optimal growth structure (top-down) and a detailed energy input component (bottom-up). The model endogenously accounts for technological change, both through learning curves that affect the prices of new vintages of capital and through R&D investments. The model features the main economic and environmental policies in each world region as the outcome of a dynamic game. WITCH belongs to the class of Integrated Assessment Models as it possesses a climate module that feeds climate changes back into the economy. Although the model’s main features are discussed elsewhere (Bosetti et al., 2006), here we provide a more thorough discussion of the model’s structure and baseline projections, to describe the model in greater detail. We report detailed information on the evolution of energy demand, technology and CO2 emissions. We also explain the procedure used to calibrate the model parameters. This report is therefore meant to provide effective support to those who intending to use the WITCH model or interpret its results.
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Bibliographic InfoPaper provided by Fondazione Eni Enrico Mattei in its series Working Papers with number 2007.10.
Date of creation: Jan 2007
Date of revision:
Climate Policy; Hybrid Modelling; Integrated Assessment; Technological Change;
Find related papers by JEL classification:
- O33 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Technological Change: Choices and Consequences; Diffusion Processes
- O41 - Economic Development, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models
- Q43 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Energy and the Macroeconomy
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- Xavier Sala-i-Martin, 1995.
"The classical approach to convergence analysis,"
Economics Working Papers
117, Department of Economics and Business, Universitat Pompeu Fabra.
- Sala-i-martin, X., 1995. "The Classical Approach to Convergence Analysis," Papers, Yale - Economic Growth Center 734, Yale - Economic Growth Center.
- Sala-i-Martin, Xavier, 1995. "The Classical Approach to Convergence Analysis," CEPR Discussion Papers, C.E.P.R. Discussion Papers 1254, C.E.P.R. Discussion Papers.
- Gerlagh, R. & Zwaan, B.C.C. van der, 2004. "A sensitivity analysis of timing and costs of Greenhouse gas emission reductions," Open Access publications from Tilburg University urn:nbn:nl:ui:12-3764009, Tilburg University.
- Sala-i-Martin, Xavier X., 1996.
"Regional cohesion: Evidence and theories of regional growth and convergence,"
European Economic Review, Elsevier,
Elsevier, vol. 40(6), pages 1325-1352, June.
- Sala-i-Martin, Xavier, 1994. "Regional Cohesion: Evidence and Theories of Regional Growth and Convergence," CEPR Discussion Papers, C.E.P.R. Discussion Papers 1075, C.E.P.R. Discussion Papers.
- Xavier Sala-i-Martin, 1994. "Regional cohesion: Evidence and theories of regional growth and convergence," Economics Working Papers 104, Department of Economics and Business, Universitat Pompeu Fabra.
- Edenhofer, Ottmar & Bauer, Nico & Kriegler, Elmar, 2005. "The impact of technological change on climate protection and welfare: Insights from the model MIND," Ecological Economics, Elsevier, Elsevier, vol. 54(2-3), pages 277-292, August.
- Jones, Charles I, 1995. "R&D-Based Models of Economic Growth," Journal of Political Economy, University of Chicago Press, University of Chicago Press, vol. 103(4), pages 759-84, August.
- Warwick J. McKibbin & David Pearce & Alison Stagman, 2004.
"Long Run Projections for Climate Change Scenarios,"
Economics and Environment Network Working Papers, Australian National University, Economics and Environment Network
0405, Australian National University, Economics and Environment Network.
- Roger Paden & Marilyn Holly & Paul Thompson & Carl Mitcham & Joel Schor & Nicholas Ellig & John Lyon & Carl Barfield & Clyde Kiker & Jeffrey Burkhardt & Miguel Altieri & Christopher Vecsey, 1986.
Agriculture and Human Values, Springer,
Springer, vol. 3(3), pages 41-80, June.
- Paul Thompson, 2008. "Book review," Agriculture and Human Values, Springer, Springer, vol. 25(1), pages 137-138, January.
- B. Ripley & Philippa Pattison & Paul Thompson & Jan Leeuw & Ludovic Lebart & Brian Everitt & Roderick McDonald & Jeffrey Banfield & Richard Hathaway, 1990. "Book reviews," Journal of Classification, Springer, Springer, vol. 7(2), pages 287-316, September.
- Paul Thompson & Keith Moore & William Rivera & Gary Green & Joel Schor & Richard Ryan & Jeffery Bentley & Bernard Ouden & William Browne, 1989. "Book reviews," Agriculture and Human Values, Springer, Springer, vol. 6(4), pages 62-80, September.
- Hiro Lee & Joaquim Oliveira Martins & Dominique van der Mensbrugghe, 1994. "The OECD Green Model: An Updated Overview," OECD Development Centre Working Papers 97, OECD Publishing.
- Quah, Danny, 1995. "Empirics for Economic Growth and Convergence," CEPR Discussion Papers, C.E.P.R. Discussion Papers 1140, C.E.P.R. Discussion Papers.
- James Ko & Carol Dahl, 2001. "Interfuel substitution in US electricity generation," Applied Economics, Taylor & Francis Journals, Taylor & Francis Journals, vol. 33(14), pages 1833-1843.
- Dahl, Carol A., 1993. "A survey of energy demand elasticities in support of the development of the NEMS," MPRA Paper 13962, University Library of Munich, Germany.
- Manne, Alan & Mendelsohn, Robert & Richels, Richard, 1995. "MERGE : A model for evaluating regional and global effects of GHG reduction policies," Energy Policy, Elsevier, Elsevier, vol. 23(1), pages 17-34, January.
- Douglas Gollin, 2002.
"Getting Income Shares Right,"
Journal of Political Economy, University of Chicago Press,
University of Chicago Press, vol. 110(2), pages 458-474, April.
- Thompson, Peter & Taylor, Timothy G, 1995. "The Capital-Energy Substitutability Debate: A New Look," The Review of Economics and Statistics, MIT Press, vol. 77(3), pages 565-69, August.
- Popp, David, 2004. "ENTICE: endogenous technological change in the DICE model of global warming," Journal of Environmental Economics and Management, Elsevier, vol. 48(1), pages 742-768, July.
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