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The value-added of sectoral disaggregation: implications on competitive consequences of climate change policies
Alexeeva-Talebi, Victoria
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Böhringer, Christoph
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Löschel, Andreas
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Voigt, Sebastian
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URL:
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https://ub-madoc.bib.uni-mannheim.de/32621
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URN:
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urn:nbn:de:bsz:180-madoc-326210
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Document Type:
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Working paper
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Year of publication:
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2012
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The title of a journal, publication series:
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ZEW Discussion Papers
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Volume:
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12-069
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Place of publication:
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Mannheim
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Publication language:
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English
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Institution:
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Sonstige Einrichtungen > ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung
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MADOC publication series:
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Veröffentlichungen des ZEW (Leibniz-Zentrum für Europäische Wirtschaftsforschung) > ZEW Discussion Papers
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Subject:
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330 Economics
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Classification:
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JEL:
D58 , H21 , H22 , Q48,
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Subject headings (SWD):
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Klimaschutz , Emissionshandel , Branche , aggregation , Energiekonsum , border tax adjustment , internationaler Wettbewerb , Elastizität , allgemeines Gleichgewicht , Theorie , Armington elasticity , energieintensive Industrie
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Keywords (English):
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Sectoral disaggregation , emissions trading , border adjustment , competitiveness , car
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Abstract:
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Global impact assessment of unilateral climate policies is commonly based on multi-sector,
multi-region computable general equilibrium (CGE) models that are calibrated to consistent accounts
of production, consumption, and bilateral trade flows. However, global economic databases such as
GTAP treat energy‐intensive and trade‐exposed industries rather in aggregate, thereby missing potentially
important details on the heterogeneity of these sectors. In this paper, we elaborate on the availability
of data resources and methodological issues in disaggregating energy-intensive and tradeexposed
sectors that receive larger attention in the public policy debate on unilateral emission regulation:
non-ferrous metals, iron and steel and non‐metallic minerals. Our sensitivity analysis revolves
around three types of unobserved heterogeneity at the sub‐sectoral level: trade elasticities, energy
consumption and technology specifications. Drawing on the example of border tax adjustments, we
find that for all given technology specifications and variation in energy shares, the biggest differences
emerge from variations in Armington elasticities. Even moderate changes in Armington elasticities can
alter the magnitude and the sign of the effects at the sectoral level. The implications of sub-sectoral
disaggregation are not as pronounced for macroeconomic indicators and leakage as for sectoral indicators.
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