통제집단으로는 처치집단과 투입 및 산출 활동이 유사하면서 OECD 기준 혁신 패턴이 동일한 세세세분류업종을 선정하였다.
A subdivision industry with similar input and output activities to the treatment group and the same OECD standard innovation pattern was selected as the control group.