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Development of a two-sector model with an extended energy sector and application to Portugal (1960-2014)

Author

Listed:
  • Santos, João
  • Domingos, Tiago
  • Sousa, Tânia
  • Serrenho, André

Abstract

In basic economic growth models, energy is neglected as a production factor, and output is generated from capital and labor in a single-sector process, with most of growth attributed to an exogenous residual. However, alternative approaches argue for a multi-sector system in which the major contribution to growth comes from increased efficiency in the conversion of energy to more productive forms. In this work we develop a two-sector model for the economy, featuring an extended energy sector, including all primary-to-final (energy industries) and final-to-useful (end-use devices) exergy conversion processes. Exergy is a thermodynamics concept, accounting for the potential of energy to perform work. Empirical application of the model for a single country (Portugal) requires decomposition and reclassification of national accounts and energy balances, to match empirical data with the model’s variables. Obtained estimates for the price of useful exergy (an intermediate product) facilitate the construction of gross output measures for more accurate growth accounting. Evidence suggests that declining useful exergy prices act as an engine of growth, as previously suggested in the literature. Additionally, useful exergy and capital inputs to non-energy related production act as complements while capital productivity in useful exergy generation declines slightly in the past decade.

Suggested Citation

  • Santos, João & Domingos, Tiago & Sousa, Tânia & Serrenho, André, 2018. "Development of a two-sector model with an extended energy sector and application to Portugal (1960-2014)," MPRA Paper 89175, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:89175
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    File URL: https://mpra.ub.uni-muenchen.de/89175/1/MPRA_paper_89175.pdf
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    References listed on IDEAS

    as
    1. Charles R. Hulten, 2001. "Total Factor Productivity: A Short Biography," NBER Chapters, in: New Developments in Productivity Analysis, pages 1-54, National Bureau of Economic Research, Inc.
    2. Santos, João & Domingos, Tiago & Sousa, Tânia & St. Aubyn, Miguel, 2018. "Useful Exergy Is Key in Obtaining Plausible Aggregate Production Functions and Recognizing the Role of Energy in Economic Growth: Portugal 1960–2009," Ecological Economics, Elsevier, vol. 148(C), pages 103-120.
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    More about this item

    Keywords

    Two-sector model; extended energy sector; useful exergy; national accounts; energy balances;

    JEL classification:

    • C82 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Macroeconomic Data; Data Access
    • E01 - Macroeconomics and Monetary Economics - - General - - - Measurement and Data on National Income and Product Accounts and Wealth; Environmental Accounts
    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models
    • O47 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - Empirical Studies of Economic Growth; Aggregate Productivity; Cross-Country Output Convergence
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q43 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Energy and the Macroeconomy

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