Federal investigators in Brazil have uncovered corruption at the highest levels of the government and in the country’s largest corporations.

South Korea’s megaconglomerates have helped lift the country out of poverty, but their extraordinary influence could put the health of the Korean economy at risk.

The G20 summit comes amid tensions over trade, climate, and refugee policy and increased uncertainty over the U.S. commitment to multilateral institutions.

The eurozone, once seen as a crowning achievement in the decades-long path toward European integration, continues to struggle with the effects of its sovereign debt crises and their implications for …