. . "Economics, economic history and consumer affairs." . . "Domestic and EEC commerce, marketing and economics." . . "Países de la Organización para la Cooperación y el Desarrollo Económicos" . . "Productividad Modelos econométricos." . . . . . . . . . . . . . "Mapping the two faces of R & D productivity growth in a panel of OECD industries" . . . . . "Mapping the two faces of R & D : productivity growth in a panel of OECD industries"@en . "Mapping the two faces of R & D : productivity growth in a panel of OECD industries" . . . . . . . . . . . . . . . "Productivity growth in a panel of OECD industries"@en . . "Mapping the two faces of R and D : productivity growth in a panel of OECD industries"@en . . . . . . . "International commerce, marketing and economics." . . "Management, administration, and business studies." . .