TY - BOOK AU - Biffignandi, Silvia, ed. TI - Micro- and macrodata of firms: edited by Silvia Biffignandi SN - 3790811432 U1 - 338.5 PY - 1999/// CY - Heidelberg PB - Physica-Verlag KW - Industrial productivity--Statistical methods KW - Industrial efficiency--Statistical methods KW - Competition, International--Statistical methods N2 - ER -