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… firm performance using a difference-in-difference approach…

… was used to divide the difference in average pay between…

… household consumption. A difference-in-differences…

… component: This is the difference between the actual…

… work often makes a big difference to ethnicity wage gaps,…

… of regional productivity differences were found:  …

… there were no significant differences in the prevalence of…

… trends and identifying differences across business…

… intergenerational differences in income and wealth…

… controls to account for differences in pupil…