From debt vultures and cooked books to fiscal time bombs, Argentine President Mauricio Macri inherited quite the mess. In his three years of office, he’s handled most of these challenges remarkably well, drawing cheers from investors and his compatriots. Here was a decisive, business-friendly manager, talking transparency and free-market initiatives to end what might have been “the largest populist experiment” ...

This week, California’s state legislature approved a bill requiring the state to get 100 percent of its electricity from carbon-free sources by the year 2045. It’s a landmark for power sector decarbonization, and if Governor Jerry Brown signs the bill, it will require a transformation of the state’s energy system. California already gets 29 percent of its electricity from zero-carbon ...

The Indian central bank’s final tally of Prime Minister Narendra Modi’s 2016 demonetization drive, intended to take money derived from tax evasion out of circulation, showed that 99.3 percent of outlawed high-value banknotes had been returned. That’s a severe loss of face for officials, who had argued that holders of the cash would rather destroy it than return it to ...