论证券交易印花税调整制度之优化

采用调高证券交易印花税率的办法来遏制股市的投机行为,需要通过具体的交易实证来验证其是否有效。2007年我国大幅提高证券交易印花税率的做法,因为股市存在的逆向效用,在实证数据上达到对于股市噪声交易的控制作用。而具体的优化制度,需要从分段累进印花税率和收益比例累进税率两个方面来完善,并通过拉弗曲线和市盈率变化来分别检验税率变化对于税源的影响程度以及波动的控制情况。

On System Optimization of the Rate-Changing of Stamp Tax on Stock Trading

Through the channel of improving the rate of stamp tax,the authorities can control unreasonable gambling behaviors in stock market,but the rationality of this practice needs empirical evidence.Due to the theory of converse effect in stock market,the measure of improving the rate of stamp tax in China has contained a sort of unreasonable trade in this market.The specific optimizing system,however,can be achieved by the way of adjusting the rates of stamp tax and progressive taxation.Furthermore,the change of profit rate as well as Laffer Curve could be used to test the impact of tax rate to the source of tax and wave control.