Learning by Doing vs Learning by Researching in a Model of Climate Change Policy Analysis
Many predictions and conclusions in climate change literature have been made on the basis of theoretical analyses and quantitative models that assume exogenous technological change. One may wonder if those policy prescriptions hold in the more realistic case of endogenously evolving technologies. In previous work we modified a popular integrated assessment model to allow for an explicit role of the stock of knowledge which accumulates through R&D investment. In our formulation knowledge affects the output production technology and the emission-output ratio. In this paper we make progress in our efforts aimed to model the process of technological change. In keeping with recent theories of endogenous growth, we specify two ways in which knowledge accumulates: via a deliberate, optimally selected R&D decision or via experience, giving rise to Learning by Doing. We simulate the model under the two versions of endogenous technical change and look at the dynamics of a number of relevant variables.
|Date of creation:||Jan 2003|
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- 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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International Environmental Agreements: Politics, Law and Economics,
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- Marzio Galeotti & Sergio Vergalli & Efrem Castelnuovo & Gretel Gambarelli, 2003.
"Learning by Doing vs Learning by Researching in a Model of Climate Change Policy Analysis,"
2003.11, Fondazione Eni Enrico Mattei.
- Castelnuovo, Efrem & Galeotti, Marzio & Gambarelli, Gretel & Vergalli, Sergio, 2005. "Learning-by-Doing vs. Learning by Researching in a model of climate change policy analysis," Ecological Economics, Elsevier, vol. 54(2-3), pages 261-276, August.
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- Sabine Messner, 1997. "Endogenized technological learning in an energy systems model," Journal of Evolutionary Economics, Springer, vol. 7(3), pages 291-313.
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