Nonlinear Tax Elasticities And Their Implications For The Structural Budget Balance
AbstractResearch on tax elasticities in South Africa mainly employs linear models and shows that taxes evolve symmetrically irrespective of the economic cycle. This study extends this research to show that taxes behave asymmetrically and nonlinearly during expansions and contractions. Estimated linear elasticities imply that a one percent expansion in the cycle increases personal income tax, corporate income tax and value added tax by 1.43, 2.52 and 0.99 percent, respectively. However, estimated nonlinear elasticities are significantly different. During an expansion, the above elasticities increase by 1.89, 2.76 and 2.17 percent, respectively while during a contraction phase these elasticities increase by 0.89, 0.88 and 0.82 respectively. This finding of low tax collection during economic contractions has important implications for fiscal sustainability and overall fiscal prudence in South Africa. The findings of high tax elasticities during expansions might explain the underestimation of revenue by the government.
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Bibliographic InfoPaper provided by University of Pretoria, Department of Economics in its series Working Papers with number 201022.
Length: 24 pages
Date of creation: Oct 2010
Date of revision:
structural budget balance; tax elasticities; nonlinearity; Smooth Transition Regression; Autoregressive Distributed Lag;
Find related papers by JEL classification:
- C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
- H20 - Public Economics - - Taxation, Subsidies, and Revenue - - - General
- H25 - Public Economics - - Taxation, Subsidies, and Revenue - - - Business Taxes and Subsidies
This paper has been announced in the following NEP Reports:
- NEP-ACC-2010-10-30 (Accounting & Auditing)
- NEP-ALL-2010-10-30 (All new papers)
- NEP-PBE-2010-10-30 (Public Economics)
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- Burcu Aydin, 2010. "Cyclicality of Revenue and Structural Balances in South Africa," IMF Working Papers 10/216, International Monetary Fund.
- Burcu Aydin, 2010. "Performance of Fiscal Accounts in South Africa in a Cross-Country Setting," IMF Working Papers 10/217, International Monetary Fund.
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