| Tax preference policy is the indispensable component of a national tax system, as well as the important measure to guiding and encouraging the enterprises' technology innovation in every country. Under the independent innovation strategy, it is necessary to stimulate our enterprises'innovation by tax policy.The enterprises'endogenous innovation drive and innovation ability, the enterprises'exogenous innovation compelling (including tax policy) and institution environment, all of them are main factors on influencing the enterprise technology innovation. The functional mechanism of tax incentives on enterprises'technology innovation is that:benefit driving mechanism (increasing the expected revenue and decreasing the expected cost, thus improving the expected profit of enterprise innovation), risk sharing mechanism (reducing the expected innovation risk bearded by the enterprise) and ability supporting mechanism (influencing the innovation capital and human resource supply) affect the enterprises'innovation drive and ability respectively, at last stimulate R&D investment and reach the policy aim of tax incentives on enterprises'technology innovation. At the same time, the effect of tax incentives is also restricted by concerning institution environment.Considering the problems in the existing tax incentive policy, this study brings forward some principles and suggestions to perfect our tax incentive policy, including constructing a rational, fair and transparent tax environment, transforming from the leading tax rate incentive mode to synthetical modes, reinforcing the incentive intensity to R&D programmes, strengthening the comprehensiveness of tax incentives, intensifying the preferential tax treatment to the investment in human capital and the persons of innovation ability. |
