I am aware of a variety of normative accounts of the desirability of Thatcher's politics in the social domain; and of the broad opinions regarding her competence (generally highly competent, poll tax as a form of hubris). However, I've not had the chance to read the scholarly literature on Thatcher and probably never will have such a chance.
What are the major academic perspectives over both Thatcher's competence and the desirability of her policy? Have studies of Thatcher ever gone through a cycle of revision or debate above and beyond the initial controversies of the day. Is Thatcher generally held to be competent by scholars, with opinion dividing over desirability? Is there unity on desirability, but division over competence? Where do such schools of thought have their basis—is it alignment with higher order theoretical or political perspectives, or a division by sub-discipline (social versus cultural history, for example)?