This paper considers the relative productivity growth performance of a balanced sample of 80 large UK firms over 9 years (1986-95), using two different benchmarks from which to compute productivity growth differences. We find that there is almost no persistence in superior productivity growth...

This paper uses industry and firm data to look at price cost mark-ups and firm profit margins in UK manufacturing and services. In particular it examines how they behave over the business cycle. It has two main findings. First, the estimated average mark-ups and the profit margin results both...

This paper investigates the behaviour of the mark-up of prices over marginal costs under two different assumptions about market structure. In the customer market model firms lower their mark-up when current output is low relative to future profits, foregoing current profits in order to capture...