Polling by YouGov made headlines around the world when it suggested 20% of young adults in the US thought the holocaust was a myth. But polling experts at the Pew Research Centre thought the result might not be accurate, due to problems with the kind of opt-in polling it was based on. They tried...

Libertarian populist Javier Milei won the presidential election in Argentina on a promise austerity and economic “shock” measures for the ailing economy. Just a few months in, some are hailing the falling rate of inflation as showing those measures are working. Economist Monica de Bolle, senior...