The study shows how a short program abroad for graduate and undergraduate students influences the attitude of participants toward longer international programs. The authors compare the rate of application to longer international exchange programs abroad (a few months to 1 year of study at partner universities of Tokyo Tech) between the participants and non-participants of JAYSES). Among 163 applicants to JAYSES, the authors selected a test-subject group of 100 students with Japanese nationality, studying at university grades from B1 to M1 at the time of their application to the program, then divided into 2 groups of 45 participants and 55 non-participants. They examined the data of applicants to other programs and counted the number of former participants and non-participants of the JAYSES. The results show a significant difference between 2 groups on the rate of application and participation to other programs. The paper concludes that short programs can be one method to encourage students to seek longer international exposure.