Analysis Of Collecting Capital Gains Tax In The Chinese Securities Market

The paper clears the concept of capital gains tax, and different capital gains tax from capital income tax. Then we analyse the conditions of tax system in our stock market, get the defect of tax system in our stock market from the stock trade and stock gains. According to three Assessment Criterions of optimal tax theory, the paper study on whether can the capital gains tax do with the market defect. Comparing with the capital gains tax of foreign mature stock market, the paper arrives conclusions.Depute over collecting capital gains tax exits, and academic circles are without unify opinions. Weighing the pros and cons, the paper introduces income effect and substitution effect of western economics to analyse how the capital gains tax impacts on market efficiency, deals with the problem of administration cost of capital gains tax by way of dynamic game theory, studies on how collecting capital gains tax impacts on security market, stock market in particular, by building model of behavior equation, which solve the problem of whether collecting capital gains tax causes security market crash, and supplies formula for setting the problem.