12zz34HRP——HR—HR—“”———HR———5HRPHRP6HRPHRP………7HRPHRPHRP8HRPHRHRXXXXXHRXXXXHRP:XXXHRP:XXX9HRP10ÊÊÊÊÊ11NHR=P+C-TNHRPCT:NHR=TB/(S+BN+W+O)/(1+a%T)TB(S+BN+W+O)a%T:NHR=a[1+(b%-c%)T]AbcÊNHR=TP/XPÊ0.80-0.9012ÊÊÊÊÊ13/“”()“”“”14ÊÊÊÊ15HRPÊÊÊÊÊÊ16HRPÊÊHRÊHRÊHRÊÊ17HRSHRM18SHRM19HRM2021HR2223ÊÊÊÊÊ24MichaelPorter25HRMHR------------26//////27