要旨：The purpose of this study is to examine applicability of agglomeration effect on tourism economics. For this purpose, this study test the hypothesis that tourists have "love of variety''. To test the hypothesis, we suggest a theoretical model of tourists' destination choice, which is based on the Dixit-Stiglitz model of monopolistic competition. We test the hypothesis using data on five residential countries and nine destination countries in the EU. The results show the number of firms in the destination affects the tourists' destination choice. In other words, tourists' preference exhibits love of variety. Hence, the theory of agglomeration can apply to tourism economics.