Applied Economics Journal

Applied Economics Journal

ISSN 0858-9291

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  • AEJ highlights the applications of concepts and theories to issues in micro- and macroeconomics
  • Double-blind peer review
  • Two issues a year (Jun, Dec)
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Vol. 22 No. 2
Vol. 22 No. 2
Tax Incidence and Inequality of Thai General Government Taxation System

Chairat Aemkulwat

Indirect Taxes comprise 47.9 percent of tax revenues of the Thai general government whereas direct taxes comprise 40.7 percent in 2014. In terms of national income, the revenue of the Thai general government is 25.71 percent central government contributing 22.79 percent and local government contributing 2.92 percent. It can also be divided into direct tax share of 10.92 percent, indirect tax share of 11.62 percent, and non-tax share of 3.17 percent. Direct taxes except land maintenance tax personal income tax, corporation income tax, petroleum income tax, building and land tax, land registration fee, motor vehicle tax, and signboard tax increase progressivity and decrease inequality. Indirect taxes except custom duties value added tax, excise tax, and other local indirect taxes decrease progressivity and increase inequality. In the base case, the poorest 10 percent bears 21.57 percent while the richest 10 percent bears 26.55 percent, contributing to a decrease of the ratio of income of richest 10 (20) percent to that of poorest 10 (20) percent to 19.25 (10.77) times, compared to 20.70 (11.50) in the case of before-tax income. In the case of elastic demand and supply, decile 1 bears 17.67 percent while decile 10 bears 26.92 percent, contributing to a decrease of the ratio of income of the richest 10 (20) percent to that of the poorest 10 (20) percent to 18.36 (10.32) times. Finally, Gini coefficient may rise or fall after tax. It increases to 0.501, a jump of 2.2 percent in the base case but falls to 0.461, a drop of 5.9 percent in the case of elastic demand and supply.

Keywords:   Tax Incidence, Size Distribution of Income, Inequality, Gini Coefficient

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Faculty of Economics Kasetsart University :  Center for Applied Economic Research (CAER) :  Other Journals :  Thai-Journal Citation Index Centre (TCI) (TCI)

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