加上变动规模报酬 Variable Return to Scale

变动规模报酬 variable returns to scale ; Variable Return Scale

为变动规模报酬 Variable Return to Scale ; VRS

考虑变动规模报酬 Variable Return to Scale ; VRS

故以变动规模报酬 Variable Return Scale

改以变动规模报酬 VRS ; Variable Return to Scale