Recent changes in British wage inequality: Evidence from firms and occupations

Using a linked employer-employee dataset, we study the increasing trend in British wage inequality over the past two decades. The dispersion of wages within firms accounts for the majority of changes to wage variance. Approximately all of the contribution to inequality dynamics from firm-specific factors are absorbed by controlling for the changing occupational content of wages. The modest trend in between-firm wage inequality is explained by a combination of changes in between-occupation inequality and the occupational composition of firms and employment. These results are robust to using weekly, hourly or annual measures of employee pay.