Specializing in econometric methods, epidemiology and mathematical economics. Retired from teaching but active in research and publication. Greatly enjoying retirement.
Serving as an independent columnist in economics and other topics for the Kansas City Star. For an alternative to Paul Krugman's New York Times commentary, check Twitter for ND_Prof_Marsh. ( Note: the author takes sole responsibility for his opinions which do not necessarily correspond to those of his colleagues, the Department or the University.) Book on commentaries in progress (release date will be late 2010 or early 2011).