Hempell, Thomas. Computers and Productivity How Firms Make a General Purpose Technology Work / [electronic resource] : by Thomas Hempell. - Heidelberg : Physica-Verlag Heidelberg, 2006. - x, 194 p. : ill., digital ; 24 cm. - ZEW Economic Studies ; 33 . ISBN: 9783790816488 (electronic bk.) Subjects--Topical Terms: Information technology--Economic aspects.Industrial productivity.Technological innovations--Economic aspects.Economics/Management Science.Technology Management. LC Class. No.: HC79.I55 / H46 2006 Dewey Class. No.: 004