[Brookings] Adoption of Fourth-Industrial-Revolution (4IR) technologies in sub-Saharan Africa could bring not only substantial economic growth and welfare benefits, but also social and economic disruption, including widening inequality if countervailing policies are not adopted, as discussed in our recent report. With a high share of the labor force working informally--a trend expected to continue for several decades--Africa's education and industrial policies need to strike a balance between encouraging private inves