Federal Reserve Chair Janet Yellen’s prepared testimony for her semi-annual report to Congress made clear that central bankers are struggling to understand the recent downward trend in inflation. Still, it is important to remember that the path of monetary policy depends not just on inflation, but also on unemployment. Yellen knows this, and it would be a mistake to interpret …

The conviction of former President Luiz Inacio Lula da Silva on corruption charges shows how far justice has come in Brazil. Yet Brazil’s next and stiffer test is in ensuring that allegations about current President Michel Temer receive a full and transparent investigation, and that the execution of justice is not reduced to back-room politics. Brazil’s future — the future …

The New York Times ran an article over the weekend about efforts by utility companies to fight the spread of rooftop-solar power: Rooftop solar panel growth has come to a shuddering stop this year, with a projected decline in new installations of 2 percent. Since 2013, Hawaii, Nevada, Arizona, Maine and Indiana have decided to phase out programs that spurred …