The Decline of Economic History

According to an American Historical Association survey described in the NYT, the percentage of American history departments with an economic historian has gone down from 55% to 32% from 1975 to 2005; diplomatic historians and intellectual historians are also less broadly represented than they once were. One question: Has the decline in economic history in history departments been made up for by an increase--in numbers if not in percentage representation--in economics or business departments?   My guess is that the large expansion of business education at the undergraduate and graduate level over the last generation has led to the hiring of more economic and business historians than in 1975; the counter hypothesis would be that business faculties have grown increasingly dominated by a scientific model of appropriate research, resulting in no increase or even a decrease in the hiring of economic and business historians by business programs.