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Intersectoral linkages: Good shocks, bad outcomes?

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  • Behrens, Kristian
  • Kichko, Sergey
  • Ushchev, Philip

Abstract

We analyze multisector models with endogenous product variety and derive general results on the magnitude of welfare changes due to sector-specific price shocks. Intersectoral linkages magnify or dampen these shocks, depending on complementarity or substitutability in consumers’ preferences. Under the widely used combination of Cobb-Douglas-CES utilities and monopolistic competition, intersectoral linkages disappear. This does not hold with more general preferences or market structures, where sector-specific price shocks that are a priori welfare improving can turn out to be welfare worsening economy-wide. We illustrate this result with several examples, in particular where one sector is ‘granular’ and the other is monopolistically competitive.

Suggested Citation

  • Behrens, Kristian & Kichko, Sergey & Ushchev, Philip, 2019. "Intersectoral linkages: Good shocks, bad outcomes?," CEPR Discussion Papers 13946, C.E.P.R. Discussion Papers.
    • Handle: RePEc:cpr:ceprdp:13946
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    References listed on IDEAS

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    1. Brander, James & Krugman, Paul, 1983. "A 'reciprocal dumping' model of international trade," Journal of International Economics, Elsevier, vol. 15(3-4), pages 313-321, November.
    2. Marc J. Melitz, 2003. "The Impact of Trade on Intra-Industry Reallocations and Aggregate Industry Productivity," Econometrica, Econometric Society, vol. 71(6), pages 1695-1725, November.
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    Cited by:

    1. Kristian Behrens & Sergey Kichko & Philip Ushchev & Sergei Kichko, 2018. "Intersectoral Markup Divergence," CESifo Working Paper Series 6965, CESifo.

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    More about this item

    Keywords

    Intersectoral linkages; Sectoral shocks; Welfare changes; Complementarity; Substitutability;
    All these keywords.

    JEL classification:

    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D62 - Microeconomics - - Welfare Economics - - - Externalities

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