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The Effects of Global Warming on Fisheries

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  • Medel, Carlos A.

Abstract

This paper develops two fisheries models in order to estimate the effect of global warming (GW) on firm value. GW is defined as an increase in the average temperature of the earth's surface because of CO₂ emissions. It is assumed that (i) GW exists, and (ii) higher temperatures negatively affect biomass. The literature on biology and GW supporting these two crucial assumptions is reviewed. The main argument presented is that temperature increase has two effects on biomass, both of which have an impact on firm value. First, higher temperatures cause biomass to oscillate. To measure the effect of biomass oscillation on firm value Pindyck's (1984) model is modified to include water temperature as a variable. The results indicate that a 1 to 20% variation in biomass causes firm value to fall from 6 to 44%, respectively. Second, higher temperatures reduce biomass, and a modification of the Smith's (1968) model reveals that an increase in temperature anomaly between +1 and +8°C causes fishery's value to decrease by 8 to 10%.

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Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 28373.

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Date of creation: 24 Jan 2011
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Handle: RePEc:pra:mprapa:28373

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Keywords: fisheries; fisheries economics; global warming; climate change;

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References

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  1. Smith, Vernon L, 1971. "Economics of Production from Natural Resources: Reply," American Economic Review, American Economic Association, vol. 61(3), pages 488-91, June.
  2. Francesco Bosello & Roberto Roson & Richard S.J. Tol, 2004. "Economy-Wide Estimates Of The Implications Of Climate Change: Sea Level Rise," Working Papers FNU-38, Research unit Sustainability and Global Change, Hamburg University, revised Jan 2004.
  3. Claudia Kemfert, 2005. "The Economic Costs of Climate Change," Weekly Report, DIW Berlin, German Institute for Economic Research, vol. 1(2), pages 43-49.
  4. Peterson, Sonja, 2006. "Uncertainty and economic analysis of climate change : a survey of approaches and findings," Open Access Publications from Kiel Institute for the World Economy 3778, Kiel Institute for the World Economy (IfW).
  5. Pindyck, Robert S, 1984. "Uncertainty in the Theory of Renewable Resource Markets," Review of Economic Studies, Wiley Blackwell, vol. 51(2), pages 289-303, April.
  6. Fankhauser, Samuel & S.J. Tol, Richard, 2005. "On climate change and economic growth," Resource and Energy Economics, Elsevier, vol. 27(1), pages 1-17, January.
  7. Clark, Colin W. & Munro, Gordon R., 1975. "The economics of fishing and modern capital theory: A simplified approach," Journal of Environmental Economics and Management, Elsevier, vol. 2(2), pages 92-106, December.
  8. Doyle, Matthew & Singh, Rajesh & Weninger, Quinn, 2006. "Fisheries Management with Stock Uncertainty and Costly Capital Adjustment," Staff General Research Papers 12770, Iowa State University, Department of Economics.
  9. Clark, Colin W & Clarke, Frank H & Munro, Gordon R, 1979. "The Optimal Exploitation of Renewable Resource Stocks: Problems of Irreversible Investment," Econometrica, Econometric Society, vol. 47(1), pages 25-47, January.
  10. Smith, Vernon L, 1969. "On Models of Commercial Fishing," Journal of Political Economy, University of Chicago Press, vol. 77(2), pages 181-98, March/Apr.
  11. Richard Tol, 2002. "Estimates of the Damage Costs of Climate Change. Part 1: Benchmark Estimates," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 21(1), pages 47-73, January.
  12. Samuel Fankhauser & Richard Tol & DAVID Pearce, 1997. "The Aggregation of Climate Change Damages: a Welfare Theoretic Approach," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 10(3), pages 249-266, October.
  13. Jon Conrad & Trond Bjørndal, 1991. "A Bioeconomic Model of the Harp Seal in the Northwest Atlantic," Land Economics, University of Wisconsin Press, vol. 67(2), pages 158-171.
  14. Bjorndal, Trond, 1987. " Production Economics and Optimal Stock Size in a North Atlantic Fishery," Scandinavian Journal of Economics, Wiley Blackwell, vol. 89(2), pages 145-64.
  15. P. Michael Link & Richard S.J. Tol, 2006. "Economic impacts on key Barents Sea fisheries arising from changes in the strength of the Atlantic thermohaline circulation," Working Papers FNU-104, Research unit Sustainability and Global Change, Hamburg University, revised May 2006.
  16. Anthony Scott, 1955. "The Fishery: The Objectives of Sole Ownership," Journal of Political Economy, University of Chicago Press, vol. 63, pages 116.
  17. Hübler, Michael & Klepper, Gernot & Peterson, Sonja, 2008. "Costs of climate change: The effects of rising temperatures on health and productivity in Germany," Ecological Economics, Elsevier, vol. 68(1-2), pages 381-393, December.
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Cited by:
  1. Da Rocha, José María & Gutiérrez Huerta, María José & Villasante, Sebastián, 2013. "Economic Effects of Global Warming under," DFAEII Working Papers DFAEII;2013-03, University of the Basque Country - Department of Foundations of Economic Analysis II.

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