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The main purpose of this study is to investigate the factors affecting the Tax Refund of Individual Income Tax in various counties and cities, analyze the factors affecting tax refund of individual income tax in various counties and cities from 2012 to 2014, develop the regression model, and investigate the effect of various independent variables on the amount of tax refund per case and the proportion of number of tax refund cases. The main empirical results are as follows: 1. Factors affecting the amount of tax refund per case: (1) The average Exemption per taxpayer, average Imputation Tax Credit, and proportion of Itemized Deduction have a positive effect on the amount of tax refund per case. (2) The proportion of employment in agriculture, forestry, fishery, and animal husbandry industries, proportion of educational background of college and above, and proportion of Withholding Tax have a negative effect on the amount of tax refund per case. (3) The proportion of withholding interest tax does not have any effect on the amount of tax refund per case. 2. Factors affecting the proportion of number of tax refund cases: (1) The average exemption per taxpayer and proportion of educational background of college and above have a positive effect on the proportion of number of tax refund cases: (2) The average deductible tax per taxpayer, proportion of withholding income, and proportion of itemized deduction have a negative effect on the proportion of number of tax refund cases. (3) The proportion of employment in agriculture, forestry, fishery, and animal husbandry does not have any effect on the proportion of number of tax refund cases.
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