Economic analysis of law to the attention of the general legal academy; by the late 1970s, his work had provoked a vigorous controversy within the legal academy. That controversy has work had provoked a vigorous controversy within the legal academy, That controversy has usually defined the debate around the philosophical foundations of economic analysis of law. Posner made two claims: (I) Common law legal rules are, in fact, efficient; and (II) Legal rules ought to be efficiency. Nevertheless, the controversy within the legal academy has generally regarded economic analysis of law as providing a comprehensive theory of law that challenges traditional approaches to law. Indeed, an explanation of the vehemence of the controversy should identify differences in fundamental views concerning law.