Tourism is characteristic of spatial flow, which helps draw wealth from rich to poor regions, thus narrowing inter-regional gaps and facilitating balanced growth of regional economy. In light of the conver-gence theory postulated by Barro and Sala-I-Martin and by means of panel model, the impact of tourism de-velopment upon balanced economic growth in 14 cities/prefectures in Gansu province has been analyzed. The result shows that:from 2001 to 2011, the economic growth of Gansu province is divergent, and tourism development has positively influenced economic growth and its convergence. Excluding tourism revenue, the inter-regional economic growth in Gansu province diverges at the speed of 3.48% per year; including tourism revenue, the inter-regional economic growth in Gansu province converges at the speed of 1.39%per year. Therefore, tourism development in Gansu province helps narrow inter-regional gaps and promote bal-anced economic growth.%旅游具有空间流动特性，这种特性能够将财富由富裕的地区带向贫困的地区，从而缩小地区差距，促进区域经济的均衡增长。以Barro和Sala-i-Martin的收敛假说为理论基础，以甘肃省为案例地，利用面板模型探讨了甘肃省旅游业发展对省内14个市州经济均衡增长的影响。研究显示：2001-2011年间，甘肃省内经济增长呈发散态势，旅游业发展对甘肃省内经济增长及其收敛性具有积极影响；不考虑旅游收入因素的影响时，甘肃省内市州间经济增长以每年3.48%的速度趋于发散；考虑旅游收入因素后，省内市州间经济增长以每年1.39%的速度相互趋同。因此，旅游业发展对缩小甘肃省内经济发展差距，促进省内经济均衡增长做出了积极贡献。
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