The Profitability and Size of United Kingdom Companies, 1960-74

I. The time period studied is I960-74. 2. Greater attention is paid to the inter-temporal variability of profitability, which was previously studied only for a restricted range of industries and for one measure variability. 3. A greater variety of profitability and size measures is used. This is due to the fact that, since the I967 Companies Act, companies have had a statutory obligation to publish aggregate sales and wages, the latter enabling us to estimate value added.