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Public Capital, Private Capital and Economic Growth

Author

Listed:
  • Alberto Bucci

    (Department of Economics, Management and Quantitative Methods (DEMM) – University of Milan (Italy), and De´partement des Sciences Economiques – Universite´ catholique de Louvain (Louvain-la-Neuve, Belgium))

Abstract

A growth model is presented in which productive government expenditure takes the form of a stock. Private and public capital interact with each other in two ways. The first is related to the specification of the aggregate production function (Cobb-Douglas vs. CES). The second has to do with the rates of investment in the two types of capital, and arises from the law of motion of public capital. The share of public capital devoted to output production can be exogenous or endogenous. In this framework, we analyse how the optimal growth rate of the economy depends on the degree of complementarity/substitutability between the investments in the two kinds of capital, as well as on the elasticity of substitution between the two capital-inputs in the production of goods. Unlike Barro (1990), the relationship between optimal growth and the share of productive government expenditure in GDP is nonlinear and characterized by threshold-effects.

Suggested Citation

  • Alberto Bucci, 2012. "Public Capital, Private Capital and Economic Growth," Rivista Internazionale di Scienze Sociali, Vita e Pensiero, Pubblicazioni dell'Universita' Cattolica del Sacro Cuore, vol. 120(2), pages 149-180.
    • Handle: RePEc:vep:journl:y:2012:v:120:i:2:p:149-180
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    Cited by:

    1. Oliviero A. Carboni & Paolo Russu, 2013. "A Model of Economic Growth with Public Finance: Dynamics and Analytic Solution," International Journal of Economics and Financial Issues, Econjournals, vol. 3(1), pages 1-13.
    2. Manuel Gómez, 2014. "Optimal size of the government: the role of the elasticity of substitution," Journal of Economics, Springer, vol. 111(1), pages 29-53, February.
    3. Aman A. Bara and Bidisha Chakraborty, 2019. "Is Public-private Partnership an Optimal Mode of Provision of Infrastructure?," Journal of Economic Development, Chung-Ang Unviersity, Department of Economics, vol. 44(1), pages 97-123, March.
    4. Gerasimos T. Soldatos, 2019. "Public-private investment substitutability-complementarity, taxation, and bank competition," ECONOMIA PUBBLICA, FrancoAngeli Editore, vol. 2019(3), pages 41-61.

    More about this item

    Keywords

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    JEL classification:

    • O41 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - One, Two, and Multisector Growth Models
    • E60 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - General
    • H54 - Public Economics - - National Government Expenditures and Related Policies - - - Infrastructures

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