并列题名：Rhetorics of welfare 并列题名：Economics of welfare Rhetorics of welfare 并列题名：The economics of welfare 并列题名：Economics of welfare Ⅰ 并列题名：Economics of welfare Ⅱ 并列题名：History of warfare 并列题名：Economics welfare 并列题名：Perspectives on welfare 并列题名：Future of warfare