本文的主要目的是給予資產的炒作行爲一個可處理的模型，並在這模型下，討論各種稅制對炒作行爲的影響。所得稅對炒作行爲毫無影響。交易稅對炒作有制止作用，但幅度不大。持有稅對炒作的遇阻力最大。

We propose a model of stock price manipulation, and using this model to discuss the influence of capital gain tax, transaction tax, and holding tax on manipulation behavior. We find that capital gain tax has no influence, and holding tax has the greatest influence.