This paper surveys econometric studies investigating the relationship between R&D and productivity at the firm level and assesses the results obtained so far and some of the problems encountered. The findings reviewed fall naturally into three major categories: based on the cross-sectional or...

[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...

This paper surveys econometric studies investigating the relationship between R&D and productivity at the firm level and assesses the results obtained so far and some of the problems encountered. The findings reviewed fall naturally into three major categories: based on the cross-sectional or...