The Turkish government moved swiftly to calm investors before financial markets reopened today after a failed coup, with the central bank promising unlimited liquidity to lenders and the deputy prime minister posting on Twitter that there’s “no need to worry.”

Amid the plunge in oil prices, Saudi Arabia expects to post a budget deficit of 367 billion riyals (€89.1bn) and Russia’s economy teeters on the brink of a deeper recession, while Iran wants to swiftly boost its oil exports, it emerged yesterday.

Celebrity economist David McWilliams is enjoying a personal boom during the bust, with his main firm enjoying record profits last year.