This paper explores the possibility of resource sharing in the East Asian Library at the University of Ohio. The case analysis of vernacular periodicals in humanities consists of quantitative analysis based on interlibrary loan (ILL) transaction records and in-house studies as well as quantitative/qualitative evaluation based on faculty journal evaluation surveys in an attempt to determine which journals are core journals and which others could be candidates for cooperative acquisitions. It was discovered that overall the current Ohio State East Asian Library Japanese serial collection in humanities basically reflects the needs of teaching faculty, as evidenced by the low number of ILL transactions in the East Asian humanities field. However, based on the faculty survey, 35 out of 191 journal titles either did not earn a rating of "Essential" or "Important", or the title was unfamiliar to the respondent. These 35 journals are thus not considered core journals and may be possible candidates for cooperative acquisitions with other research libraries. Appendices of 7 tables summarize the study data. (Contains 55 references.) (MAS)