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Impacts of Public Infrastructure Investment in South Africa: A SAM and CGE-Based Analysis of the Public Economic Sector

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  • Mbanda, Vandudzai
  • Bonga-Bonga, Lumengo

Abstract

This paper assesses the general equilibrium impacts of public infrastructure investment in the South African economy by making use of complementary general equilibrium models, such as the social accounting matrix (SAM) multiplier, the Structural Path Analyses (SPA) and the Computable General Equilibrium (CGE) models. Both the SAM and CGE analyses indicate that increasing public economic infrastructure can be an effective way of stimulating the economy in a way that has a positive impact on labour. SPA shows that the main and most important path of influence is a direct influence of the public economic sector on each of the formal labour categories. However, because the public economic sector does not employ informal labour, this labour account is only connected indirectly via intermediate consumption of the construction sector output. This is an important outcome for South Africa, as the results suggest that an increase in public economic infrastructure could help address the problem of unemployment as well as that of low income levels that exacerbate poverty

Suggested Citation

  • Mbanda, Vandudzai & Bonga-Bonga, Lumengo, 2018. "Impacts of Public Infrastructure Investment in South Africa: A SAM and CGE-Based Analysis of the Public Economic Sector," MPRA Paper 90613, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:90613
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    Cited by:

    1. Mbanda, Vandudzai & Bonga-Bonga, Lumengo, 2023. "Municipal Infrastructure Spending Capacity in South Africa: A Panel Smooth Transition Regression Approach," Economia Internazionale / International Economics, Camera di Commercio Industria Artigianato Agricoltura di Genova, vol. 76(1), pages 41-64.
    2. Mbanda, Vandudzai & Bonga-Bonga, Lumengo, 2019. "Municipal infrastructure spending capacity in South Africa: a panel smooth transition regression (PSTR) approach," MPRA Paper 91499, University Library of Munich, Germany.

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    More about this item

    Keywords

    public infrastructure; structural path analysis; social accounting matrix; Computable general equilibrium;
    All these keywords.

    JEL classification:

    • C67 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Input-Output Models
    • C68 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computable General Equilibrium Models
    • H54 - Public Economics - - National Government Expenditures and Related Policies - - - Infrastructures

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