Klum@Gtap: Introducing Biophysical Aspects of Land-Use Decisions into a General Equilibrium Model: a Coupling Experiment

49 Pages Posted: 2 Sep 2006

See all articles by Kerstin Ronneberger

Kerstin Ronneberger

Deutsches Klimarechenzentrum GmbH

Maria Berrittella

University of Palermo - CIRPIET

Francesco Bosello

University of Milan - Department of Economics, Business and Statistics; CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici

Richard S. J. Tol

VU University Amsterdam - Institute for Environmental Studies (IVM); Carnegie Mellon University - Center for Integrated Study of the Human Dimensions of Global Change; University of Hamburg - Centre for Marine and Climate Research (ZMK); Princeton University

Date Written: August 2006

Abstract

In this paper the global agricultural land use model KLUM is coupled to an extended version of the computable general equilibrium model (CGE) GTAP in order to consistently assess the integrated impacts of climate change on global cropland allocation and its implication for economic development. The methodology is innovative as it introduces dynamic economic land-use decisions based also on the biophysical aspects of land into a state-of-the-art CGE; it further allows the projection of resulting changes in cropland patterns on a spatially more explicit level. A convergence test and illustrative future simulations underpin the robustness and potentials of the coupled system. Reference simulations with the uncoupled models emphasize the impact and relevance of the coupling; the results of coupled and uncoupled simulations can differ by several hundred percent.

Keywords: Land-Use Change, Computable General Equilibrium Modeling, Integrated Assessment, Climate Change

JEL Classification: C68, Q15

Suggested Citation

Ronneberger, Kerstin and Berrittella, Maria and Bosello, Francesco and Tol, Richard S. J., Klum@Gtap: Introducing Biophysical Aspects of Land-Use Decisions into a General Equilibrium Model: a Coupling Experiment (August 2006). FEEM Working Paper No. 102.06, Available at SSRN: https://ssrn.com/abstract=927431 or http://dx.doi.org/10.2139/ssrn.927431

Kerstin Ronneberger (Contact Author)

Deutsches Klimarechenzentrum GmbH ( email )

Bundesstrasse 55
D-20146 Hamburg
Germany

Maria Berrittella

University of Palermo - CIRPIET ( email )

Viale delle Scienza
Palermo, 90128
Italy

Francesco Bosello

University of Milan - Department of Economics, Business and Statistics

Via Festa del Perdono, 7
Milan, 20122
Italy

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Richard S. J. Tol

VU University Amsterdam - Institute for Environmental Studies (IVM) ( email )

De Boelelaan 1115
Amsterdam, 1081 HV
Netherlands
+31 20 444 9555 (Phone)
+31 20 444 9553 (Fax)

Carnegie Mellon University - Center for Integrated Study of the Human Dimensions of Global Change

Pittsburgh, PA 15213-3890
United States

University of Hamburg - Centre for Marine and Climate Research (ZMK)

Troplowitzstrasse 7
D-22529 Hamburg
Germany

Princeton University ( email )

22 Chambers Street
Princeton, NJ 08544-0708
United States

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