New theory of the class relations in contemporary capitalist society 并列题名：New theory of the class relations in contemporary capitalist society theory and practice of communist parties in contemporary capitalist countries Communist parties in contemporary capitalist countries Study on the basic issues of contemporary capitalism 并列题名：Communist parties in contemporary capitalist countries Critical theory and the crisis of contemporary capitalism 并列题名：Study on the basic issues of contemporary capitalism The theory of legal protection in resource-efficient society