IN BRITAIN, AN IDEA TO REDUCE RACIAL INEQUALITY GAINS MOMENTUM. Nearly two years ago, the British government seemed to be on the verge of doing something truly novel about racial and ethnic inequality. Theresa May, the prime minister at the time, had adopted a plan to root out one of the causes of differences in incomes that would “create a fairer and more diverse work force,” she said. … Ms. May suggested the government require companies and other large employers to report the disparities in pay among their employees based on ethnicity, as they had recently been made to do for gender.