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『KIPF Policy Research Series』(2020 June Vol. 3) [정재현] , [Byung Mok] , [Jeon et al] , [정다운] , [강동익] , [하세정] , [이철인] , [성명재] , [이동규] , [Byung Mok] , [Jeon et al] , [전병목]