생산경쟁력의 집중화 정도에 따른 통계적 프로세스 관리(SPC) 및 SCM 실행방식과 성과 차이에 대한 연구

Generally, the competitive priorities in operations management(OM), as the source of advantage in competition, consist of cost, flexibility, delivery and quality. There are two distinct viewpoints looking at competitive priorities in OM, which are 'trade-off' viewpoint and 'cumulative' one. The former argues that 4 factors cannot be pursued simultaneously since there are some conflicts in the factors for actual operation process, while the latter asserts that those factors have some synergy or some kind of order in pursuit and can be sought synchronously. On the other hand, 'Statistical Process Control' and 'Supply Chain Management' practices have been considered as very important variable or system of effort for manufacturing companies, which can have some effect on corporate performances. In this context, our research question was to confirm which viewpoint is more effective between SPC, SCM practice and performance relationship. To do so, we divided sample 132 Korean manufacturing companies into two groups of 'trade-off' and 'cumulative,' by 'competitive priorities concentration index' which was applied version of 'Hirschman-Herfindahl index' used prevalently in economics. According to empirical research results, 'cumulative' viewpoint group was more effective to the relationship between SPC, SCM practice and production performance than 'trade-off' group, which gives us implication that if manufacturing companies have to mobilize their efforts and to invest limited budget under the strategy of 'cumulative' viewpoint in OM's competitive priorities they will achieve their goals more effectively and efficiently.