실증 분석은 평균 고용률과 평균 성장률의 차분 모형을 이용 Engle-Granger 공적분 검정을 실시하였으며 분석 결과 OECD 23개국 중 14개국에서 오쿤 법칙이 유효한 것으로 분석하였다.
For empirical analysis, the Engle-Granger cointegration test was performed using the difference model between the average employment rate and the average growth rate, and as a result of the analysis, it was analyzed that Okun's law is valid in 14 out of 23 OECD countries.