随着社会的发展,旅游业越来越成为国民经济中的重要组成部分。旅游业的发展带动了三次产业的迅速发展,促进了经济增长。本文在统计数据的基础上,运用灰色关联理论就东三省旅游业与其三次产业关联性进行实证分析和研究,揭示出其中的内在联系和协调性。 With the development of society, tourism has become an increasingly important part of the national economy. The development of tourism has led to the rapid development of three industries and promoted the economic growth. Based on the statistical data, this paper uses the gray relational theory to make an empirical analysis and research on the relativity between tourism and its tertiary industries in the three northeastern provinces, revealing the internal relations and coordination among them.