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Optimal growth when environmental quality is a research asset

  • Groth, Christian
  • Ricci, Francesco

We advance an original assumption whereby a good state of the environment positively affects labor productivity in R&D such that deteriorating environmental quality negatively impacts R&D. We study the implications of this assumption for the optimal solution in an R&D-based model of growth, where the use of a non-renewable resource generates pollution. We show that in such a case, it is socially optimal to postpone extraction, as opposed to the situation in which the environment has no effect on productivity in R&D. Furthermore, insofar as environmental quality declines and subsequently recovers, we find that it is optimal to re-allocate employment to R&D in line with productivity changes. If environmental quality recovers only partially from pollution, R&D effort optimally begins above its long-run level, then progressively declines to a minimum and eventually increases to its steady-state level.

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Paper provided by LERNA, University of Toulouse in its series LERNA Working Papers with number 10.27.333.

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Date of creation: Dec 2010
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Handle: RePEc:ler:wpaper:10.27.333
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  1. Francesco Ricci, 2007. "Environmental policy and growth when inputs are differentiated in pollution intensity," Working Papers 12198, Institut National de la Recherche Agronomique, France.
  2. Karl-Josef Koch & Timo Trimborn & Thomas M. Steger, 2005. "Multi-Dimensional Transitional Dynamics: A Simple Numerical Procedure," Volkswirtschaftliche Diskussionsbeiträge 121-05, Universität Siegen, Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht.
  3. Lans Bovenberg, A. & Smulders, Sjak, 1995. "Environmental quality and pollution-augmenting technological change in a two-sector endogenous growth model," Journal of Public Economics, Elsevier, vol. 57(3), pages 369-391, July.
  4. Paul M Romer, 1999. "Endogenous Technological Change," Levine's Working Paper Archive 2135, David K. Levine.
  5. André Grimaud & Luc Rouge, 2008. "Environment, Directed Technical Change and Economic Policy," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 41(4), pages 439-463, December.
  6. Acemoglu, Daron & Aghion, Philippe & Bursztyn, Leonardo & Hemous, David, 2010. "The Environment and Directed Technical Change," Seminar Papers 762, Stockholm University, Institute for International Economic Studies.
  7. Raymond Gradus & Sjak Smulders, 1993. "The trade-off between environmental care and long-term growth—Pollution in three prototype growth models," Journal of Economics, Springer, vol. 58(1), pages 25-51, February.
  8. Sinn, Hans-Werner, 2008. "Public policies against global warming: A supply side approach," Munich Reprints in Economics 19638, University of Munich, Department of Economics.
  9. Groth, Christian & Schou, Poul, 2007. "Growth and non-renewable resources: The different roles of capital and resource taxes," Journal of Environmental Economics and Management, Elsevier, vol. 53(1), pages 80-98, January.
  10. F. Ricci, 2004. "Environmental Policy and Growth when Inputs are Differentiated in Pollution Intensity," THEMA Working Papers 2004-23, THEMA (THéorie Economique, Modélisation et Applications), Université de Cergy-Pontoise.
  11. Elbasha, Elamin H. & Roe, Terry L., 1996. "On Endogenous Growth: The Implications of Environmental Externalities," Journal of Environmental Economics and Management, Elsevier, vol. 31(2), pages 240-268, September.
  12. Hart, Rob, 2004. "Growth, environment and innovation--a model with production vintages and environmentally oriented research," Journal of Environmental Economics and Management, Elsevier, vol. 48(3), pages 1078-1098, November.
  13. Di Maria, Corrado & Valente, Simone, 2006. "The Direction of Technical Change in Capital-Resource Economies," MPRA Paper 1040, University Library of Munich, Germany.
  14. Philippe Michel & Gilles Rotillon, 1995. "Disutility of pollution and endogenous growth," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 6(3), pages 279-300, October.
  15. Hans-Werner Sinn, 2007. "Public Policies against Global Warming," CESifo Working Paper Series 2087, CESifo Group Munich.
  16. Bretschger, L. & Smulders, J.A., 2007. "Sustainable resource use and economic dynamics," Other publications TiSEM fb7079e5-6c6e-4960-91f8-8, Tilburg University, School of Economics and Management.
  17. Hippolyte d’Albis & Pascal Gourdel & Cuong Le Van, 2008. "Existence of solutions in continuous-time optimal growth models," Economic Theory, Springer, vol. 37(2), pages 321-333, November.
  18. Ulph, Alistair & Ulph, David, 1994. "The Optimal Time Path of a Carbon Tax," Oxford Economic Papers, Oxford University Press, vol. 46(0), pages 857-68, Supplemen.
  19. Poul Schou, 2000. "Polluting Non-Renewable Resources and Growth," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 16(2), pages 211-227, June.
  20. Michael Hoel, 2008. "Bush Meets Hotelling: Effects of Improved Renewable Energy Technology on Greenhouse Gas Emissions," CESifo Working Paper Series 2492, CESifo Group Munich.
  21. Timo Goeschl & Timothy Swanson, 2002. "The Social Value of Biodiversity for R&D," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 22(4), pages 477-504, August.
  22. Amy Craft & R. Simpson, 2001. "The Value of Biodiversity in Pharmaceutical Research with Differentiated Products," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 18(1), pages 1-17, January.
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