Sassenou, Mohamed; Mairesse, Jacques - In: Économie et Prévision 91 (1989) 5, pp. 35-42
[eng] Tentative estimates of qualitative factors of productivity, . by Jacques Mairesse, Mohamed Sassenou.. . Besides taking into account the two main production factors, i.e. capital and labour as usually measured, the present study is an attempt to assess the influence of some qualitative...