JULIAN RAMAJO UNIVERSITY OF EXTREMADURA   Department of Economics Faculty of Economics and Business Elvas Avenue s/n Badajoz, Extremadura 06071 Spain   ramajo@unex.es   http://eco.unex.es/jramajo/jrh_eng.htm       Primary Research Focus: Macroeconometrics, Regional Econometrics, Econometrics of Demand Systems, Spatial Econometrics   JEL Areas: C5 : Econometric Modeling: General E0 : Macroeconomics and Monetary Economics: General