In the May issue of Economic Trends, three papers are published on different aspects of productivity. Successive government documents have highlighted the importance of improving productivity, most recently in Treasury papers accompanying the Budget HM Treasury, Productivity in the UK: Progress towards a productive economy, March 2001. The government proposes measures to encourage enterprise and innovation and to narrow the productivity gap between the UK and its competitors. The issues associated with measuring productivity have often been noted. The three papers in this issue outline the developments in this area.