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Aggregate Productivity Effects of Technology Shocks in a Model of Heterogeneous Firms: The Importance of Equilibrium Adjustments

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This paper studies how productivity shifts at the level of the firm are transmitted to aggregate industry productivity in a model of heterogeneous firms. We analyse both uniform productivity shifts, and catching up by reducing the productivity differentials between firms. The two kinds of shifts affect aggregate productivity in different ways and through different mechanisms. Endogenous equilibrium adjustments play a crucial role for the influence on aggregate productivity. Moreover, when firms sell their output to several markets, and their market power differs between markets, aggregate productivity may be inversely related to productivity at the firm level. A by-product of the analysis is to demonstrate that productivity heterogeneity can be incorporated in the standard model of monopolistic competition at a low cost in terms of analytical tractability.

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  • Erling Holmøy & Torbjørn Hægeland, 1997. "Aggregate Productivity Effects of Technology Shocks in a Model of Heterogeneous Firms: The Importance of Equilibrium Adjustments," Discussion Papers 198, Statistics Norway, Research Department.
    • Handle: RePEc:ssb:dispap:198
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    1. Turid Åvitsland, 2006. "The Problem With a Risk Premium in a Non-stochastic CGE Model," EcoMod2006 272100005, EcoMod.
    2. Rolf Aaberge & Ugo Colombino & Erling Holmøy & Birger Strøm & Tom Wennemo, 2004. "Population ageing and fiscal sustainability: An integrated micro-macro analysis of required tax changes," Discussion Papers 367, Statistics Norway, Research Department.
    3. Bye, Brita & Fæhn, Taran & Heggedal, Tom-Reiel, 2009. "Welfare and growth impacts of innovation policies in a small, open economy; an applied general equilibrium analysis," Economic Modelling, Elsevier, vol. 26(5), pages 1075-1088, September.
    4. Bjertnæs, Geir H. & Fæhn, Taran, 2008. "Energy taxation in a small, open economy: Social efficiency gains versus industrial concerns," Energy Economics, Elsevier, vol. 30(4), pages 2050-2071, July.
    5. Grepperud, Sverre & Rasmussen, Ingeborg, 2004. "A general equilibrium assessment of rebound effects," Energy Economics, Elsevier, vol. 26(2), pages 261-282, March.
    6. Bye Brita & Faehn Taran & Grünfeld Leo A., 2011. "Growth and Innovation Policy in a Small, Open Economy: Should You Stimulate Domestic R&D or Exports?," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 11(1), pages 1-41, July.
    7. Holmøy, Erling & Strøm, Birger, 2013. "Computable General Equilibrium Assessments of Fiscal Sustainability in Norway," Handbook of Computable General Equilibrium Modeling, in: Peter B. Dixon & Dale Jorgenson (ed.), Handbook of Computable General Equilibrium Modeling, edition 1, volume 1, chapter 0, pages 105-158, Elsevier.
    8. Brita Bye & Birger Strøm & Turid Åvitsland, 2012. "Welfare effects of VAT reforms: a general equilibrium analysis," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 19(3), pages 368-392, June.
    9. Erling Holmøy, 2003. "Aggregate Industry Behaviour in a Monopolistic Competition Model with Heterogeneous Firms," Discussion Papers 352, Statistics Norway, Research Department.
    10. Erling Holmøy & Torbjørn Hægeland, 2000. "Aggregate Productivity and Heterogeneous Firms," Discussion Papers 266, Statistics Norway, Research Department.
    11. Holmøy, Erling, 2016. "The development and use of CGE models in Norway," Journal of Policy Modeling, Elsevier, vol. 38(3), pages 448-474.
    12. Taran Fæhn & Erling Holmøy, 2001. "Trade Liberalisation and Effects on Pollutive Emissions and Waste A General Equilibrium Assessment for Norway," Discussion Papers 298, Statistics Norway, Research Department.
    13. Taran Fæhn & Erling Holmøy, 1999. "Welfare Effects of Trade Liberalisation in Distorted Economies A Dynamic General Equilibrium Assessment for Norway," Discussion Papers 251, Statistics Norway, Research Department.
    14. Erling Holmøy & Kim Massey Heide, 2005. "Is Norway immune to Dutch Disease? CGE Estimates of Sustainable Wage Growth and De-industrialisation," Discussion Papers 413, Statistics Norway, Research Department.
    15. Bye, Brita, 2000. "Environmental Tax Reform and Producer Foresight: An Intertemporal Computable General Equilibrium Analysis," Journal of Policy Modeling, Elsevier, vol. 22(6), pages 719-752, November.
    16. Torstein Bye & Erling Holmϕy, 2010. "Removing Policy-based Comparative Advantage for Energy Intensive Production: Necessary Adjustments of the Real Exchange Rate and Industry Structure," The Energy Journal, , vol. 31(1), pages 177-198, January.
    17. Turid Avitsland & Jorgen Aasness, 2006. "Combining microsimulation and CGE models: Effects on equality of VAT reforms," Computing in Economics and Finance 2006 132, Society for Computational Economics.

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    JEL classification:

    • D24 - Microeconomics - - Production and Organizations - - - Production; Cost; Capital; Capital, Total Factor, and Multifactor Productivity; Capacity
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

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