TY - BOOK AU - Feenstra,Robert C. AU - Markusen,James A. AU - Rose,Andrew K. TI - Understanding the home market effect and the gravity equation : the role of differentiating goods AV - HF1721 F436U PY - 1998/// CY - Cambridge, Mass PB - National Bureau of Economic Research KW - RECIPROCITY KW - ECONOMETRIC MODELS KW - EXPORTS KW - GROSS DOMESTIC PRODUCT KW - ECONOMICS KW - RESEARCH ER -