Along with the globalization and information-economic epoch, international knowledge spillover plays an important role in regional development, and the regional innovation system becomes more and more open-ended. As a nexus of the destination and the outside world, inbound tourism brings various economic and social resources for the development of the host region, which may also contribute to a higher level of cognitive proximity and absorptive capability as well as to greater product variety and manifold consumption externalities. Much research has addressed the influence of innovation on the tourism industry development, but only a few studies have focused on the impact of tourism on innovation. This study focusses on the influence of inbound tourism on a regional innovation system. The aims of this research are to: (1) interpret the mechanism of how inbound tourism impacts regional innovation; (2) inquire the external influence factors of the performance of inbound tourism; (3) explore the different characteristics of these effects when considering different types of innovation; (4) revisit the Tourism-Led Growth (TLG) hypothesis, and consider whether innovation can be a new vehicle to explain the influence of inbound tourism on spatial economic development. The influence of inbound tourism on innovation will provide a new perspective for analyzing the long term impact of tourism development. Furthermore, it may also be a meaningful complement to studies on the relationship between immigration, culture diversity and innovation, especially in the context of developing regions. Our study is organized as follows. First, the theoretical framework and the related hypotheses on the interaction between inbound tourism and regional innovation are presented. The network structure and diverse demands approaches as well as the effect of the regional absorptive capacity are considered and highlighted. Next, data from 30 Chinese Mainland provinces (Tibet being excluded, because part of the important indicators are unavailable) for the years 2003-2012 are used for the empirical analysis. The data come from the Chinese Patent Statistical Yearbook, the Chinese Statistical Yearbook, and the China Economic & Industry Data Database. From a methodical perspective, an entropy method and a perpetual inventory method were undertaken to measure the key variables. Next, a descriptive analysis was used to reach a preliminary idea on the above relationship. As to the existence of spatial autocorrelation, spatial panel data analysis was conducted to test these hypotheses. The study finds that inbound tourism is a driving force for a regional innovation system in China and can bring a new life to regional economic development. Firstly, inbound tourism appears to have a direct and indirect impact on regional innovation, while absorptive capacity has a significant mediating effect in this relationship. Secondly, the impact of inbound tourism on regional innovation capacity tends to be stronger in the wealthier and more international-oriented provinces. Thirdly, the effect of inbound tourism on technological innovation is mostly weaker than that of social innovation. Fourthly, this study supports the TLG hypothesis with regional innovation as the mediating variable.
