The U.S., U.K. and China are roaring ahead, while most lower income nations are struggling, reversing decades of progress in alleviating global poverty. “This has become the inequality virus.”

As tech campuses became ghost towns, the people who kept them running—cooks, custodians, drivers—faced an existential threat to their livelihoods.

Emerging markets are at risk of falling far behind their advanced counterparts. That’s the whole world’s problem, officials warned.