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Optimal growth when environmental quality is a research asset

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  • Groth, Christian
  • Ricci, Francesco

Abstract

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. Smulders, J.A., 1995. "Environmental quality and pollution-augmenting technological change in a two-sector endogenous growth model," Open Access publications from Tilburg University urn:nbn:nl:ui:12-153411, Tilburg University.
  2. Hans-Werner Sinn, 2008. "Public policies against global warming: a supply side approach," International Tax and Public Finance, Springer, vol. 15(4), pages 360-394, August.
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  4. Romer, Paul M, 1990. "Endogenous Technological Change," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages S71-102, October.
  5. Corrado Di Maria & Simone Valente, 2006. "The Direction of Technical Change in Capital-Resource Economies," CER-ETH Economics working paper series 06/50, CER-ETH - Center of Economic Research (CER-ETH) at ETH Zurich.
  6. 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.
  7. Lucas Bretschger & Sjak Smulders, 2007. "Sustainable Resource Use and Economic Dynamics," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 36(1), pages 1-13, January.
  8. Michael Hoel, 2008. "Bush Meets Hotelling: Effects of Improved Renewable Energy Technology on Greenhouse Gas Emissions," CESifo Working Paper Series 2492, CESifo Group Munich.
  9. Daron Acemoglu & Philippe Aghion & Leonardo Bursztyn & David Hemous, 2012. "The Environment and Directed Technical Change," American Economic Review, American Economic Association, vol. 102(1), pages 131-66, February.
  10. Timo Trimborn & Karl-Josef Koch & Thomas Steger, 2006. "Multi-Dimensional Transitional Dynamics: A Simple Numberical Procedure," CESifo Working Paper Series 1745, CESifo Group Munich.
  11. 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.
  12. 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.
  13. Hans-Werner Sinn, 2007. "Public Policies against Global Warming," NBER Working Papers 13454, National Bureau of Economic Research, Inc.
  14. Hippolyte d'Albis & Pascal Gourdel & Cuong Le Van, 2004. "Existence of solutions in continuous-time optimal growth models," Cahiers de la Maison des Sciences Economiques b04063, Université Panthéon-Sorbonne (Paris 1).
  15. 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.
  16. 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.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. 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.
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