Berson-Samuelson social welfare function
domestic social welfare
her school social welfare worker
money metric social welfare function
multi-valued social welfare function
Rawlsian social welfare function
Social welfare
福祉
社会福利
社会公益
社会效益
社会总福利
社会福利界
公共福利
福利
social welfare activities
Social Welfare Department
social welfare distribution
social welfare expenditure
social welfare function
social welfare functional constituency
social welfare functions