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Being numerous does not yield efficiency - Productivity and entry-exit determinants in European business services
Kox, Henk L.M., (2011)
Market selection and scale inefficiency – A new methodology applied to EU business services
Kox, Henk L.M., (2013)
Competitive, but too small - productivity and entry-exit determinants in European business services
Kox, Henk L.M., (2010)