Wege zur Klimaneutralität bis 2045 – Politische Handlungsfelder
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- Balint, T. & Lamperti, F. & Mandel, A. & Napoletano, M. & Roventini, A. & Sapio, A., 2017.
"Complexity and the Economics of Climate Change: A Survey and a Look Forward,"
Ecological Economics, Elsevier, vol. 138(C), pages 252-265.
- T. BALINT & F. LAMPERTI & A. Mandel & A. Roventini Author-Workplace-Name : OFCE-Sciences Pp and SKEMA Businees School & A. Sapio Author-Workplace-Name : Parathenope Universtiy of Naples, 2016. "Complexity and the Economics of Climate Change : a survey and look forward," Documents de Travail de l'OFCE 2016-23, Observatoire Francais des Conjonctures Economiques (OFCE).
- Tomas Balint & Francesco Lamperti & Antoine Mandel & Mauro Napoletano & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," Documents de travail du Centre d'Economie de la Sorbonne 16058, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- Tomas Balint & Francesco Lamperti & Antoine Mandel & Mauro Napoletano & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-01390694, HAL.
- Tomas Balint & Francesco Lamperti & Mauro Napoletano & Antoine Mandel & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," Working Papers hal-03459291, HAL.
- T. Balint & F. Lamperti & Antoine Mandel & Mauro Napoletano & A. Roventini & A. Sapio, 2017. "Complexity and the Economics of Climate Change: A Survey and a Look Forward," PSE-Ecole d'économie de Paris (Postprint) halshs-01906003, HAL.
- T. Balint & F. Lamperti & Antoine Mandel & Mauro Napoletano & A. Roventini & A. Sapio, 2017. "Complexity and the Economics of Climate Change: A Survey and a Look Forward," SciencePo Working papers Main halshs-01906003, HAL.
- Tomas Balint & Francesco Lamperti & Mauro Napoletano & Antoine Mandel & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," SciencePo Working papers Main hal-03459291, HAL.
- T. Balint & F. Lamperti & Antoine Mandel & Mauro Napoletano & A. Roventini & A. Sapio, 2017. "Complexity and the Economics of Climate Change: A Survey and a Look Forward," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-01906003, HAL.
- Tomas Balint & Francesco Lamperti & Antoine Mandel & Mauro Napoletano & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," Post-Print halshs-01390694, HAL.
- Tomas Balint & Francesco Lamperti & Antoine Mandel & Mauro Napoletano & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," LEM Papers Series 2016/29, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
- Tomas Balint & Francesco Lamperti & Antoine Mandel & Mauro Napoletano & Andrea Roventini & Alessandro Sapio, 2016. "Complexity and the Economics of Climate Change: a Survey and a Look Forward," SciencePo Working papers Main halshs-01390694, HAL.
- T. Balint & F. Lamperti & Antoine Mandel & Mauro Napoletano & A. Roventini & A. Sapio, 2017. "Complexity and the Economics of Climate Change: A Survey and a Look Forward," Post-Print halshs-01906003, HAL.
- Nicole Glanemann & Sven N. Willner & Anders Levermann, 2020. "Paris Climate Agreement passes the cost-benefit test," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
- David I. Stern, 2012.
"Interfuel Substitution: A Meta‐Analysis,"
Journal of Economic Surveys, Wiley Blackwell, vol. 26(2), pages 307-331, April.
- David I.Stern, 2009. "Interfuel Substitution: A Meta Analysis," Environmental Economics Research Hub Research Reports 0933, Environmental Economics Research Hub, Crawford School of Public Policy, The Australian National University.
- Stern, David I., 2009. "Interfuel Substitution: A Meta-Analysis," Research Reports 94882, Australian National University, Environmental Economics Research Hub.
- Stern, David I., 2009. "Interfuel Substitution: A Meta-Analysis," MPRA Paper 13734, University Library of Munich, Germany.
- David I. Stern, 2009. "Interfuel Substitution: A Meta-Analysis," Departmental Working Papers 2009-06, The Australian National University, Arndt-Corden Department of Economics.
- Robert S. Pindyck, 2013.
"Climate Change Policy: What Do the Models Tell Us?,"
Journal of Economic Literature, American Economic Association, vol. 51(3), pages 860-872, September.
- Robert S. Pindyck, 2013. "Climate Change Policy: What Do the Models Tell Us?," NBER Working Papers 19244, National Bureau of Economic Research, Inc.
- Lamperti, F. & Dosi, G. & Napoletano, M. & Roventini, A. & Sapio, A., 2020.
"Climate change and green transitions in an agent-based integrated assessment model,"
Technological Forecasting and Social Change, Elsevier, vol. 153(C).
- G. Dosi & F. Lamperti & Mauro Napoletano & A. Roventini & A. Sapio, 2020. "Climate change and green transitions in an agent-based integrated assessment model," SciencePo Working papers Main halshs-03046932, HAL.
- G. Dosi & F. Lamperti & Mauro Napoletano & A. Roventini & A. Sapio, 2020. "Climate change and green transitions in an agent-based integrated assessment model," Post-Print halshs-03046932, HAL.
- Satoshi Tsuchiya & Hirokazu Tatano & Norio Okada, 2007. "Economic Loss Assessment due to Railroad and Highway Disruptions," Economic Systems Research, Taylor & Francis Journals, vol. 19(2), pages 147-162.
- Richard L. Revesz & Peter H. Howard & Kenneth Arrow & Lawrence H. Goulder & Robert E. Kopp & Michael A. Livermore & Michael Oppenheimer & Thomas Sterner, 2014. "Global warming: Improve economic models of climate change," Nature, Nature, vol. 508(7495), pages 173-175, April.
- Martin L. Weitzman, 2013.
"Tail-Hedge Discounting and the Social Cost of Carbon,"
Journal of Economic Literature, American Economic Association, vol. 51(3), pages 873-882, September.
- Weitzman, Martin L., 2013. "Tail-Hedge Discounting and the Social Cost of Carbon," Scholarly Articles 12841971, Harvard University Department of Economics.
- Gao, Jiti & Peng, Bin & Smyth, Russell, 2021.
"On income and price elasticities for energy demand: A panel data study,"
Energy Economics, Elsevier, vol. 96(C).
- Jiti Gao & Bin peng & Russell Smyth, 2020. "On Income and Price Elasticities for Energy Demand: A Panel Data Study," Monash Econometrics and Business Statistics Working Papers 28/20, Monash University, Department of Econometrics and Business Statistics.
- Nicholas Stern, 2016. "Economics: Current climate models are grossly misleading," Nature, Nature, vol. 530(7591), pages 407-409, February.
- J. Farmer & Cameron Hepburn & Penny Mealy & Alexander Teytelboym, 2015. "A Third Wave in the Economics of Climate Change," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 62(2), pages 329-357, October.
- repec:hal:spmain:info:hdl:2441/1nlv566svi86iqtetenms15tc4 is not listed on IDEAS
- John Weyant, 2017. "Some Contributions of Integrated Assessment Models of Global Climate Change," Review of Environmental Economics and Policy, Association of Environmental and Resource Economists, vol. 11(1), pages 115-137.
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More about this item
Keywords
Klimaneutralität bis 2045; Climate neutrality by 2045;JEL classification:
- O - Economic Development, Innovation, Technological Change, and Growth
- P - Political Economy and Comparative Economic Systems
NEP fields
This paper has been announced in the following NEP Reports:- NEP-ENE-2022-05-02 (Energy Economics)
- NEP-ENV-2022-05-02 (Environmental Economics)
- NEP-GER-2022-05-02 (German Papers)
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