Jonathan Gruber and Simon Johnson

Overcoming Yemen's fragmentation requires more support for the Riyadh-led path—one that rejects secession, all militias and institutionalises the state

Tighter US control over Venezuelan exports won't necessarily redirect barrels, reshape trade flows, or alter global supply balances

Maduro's exit doesn't mean the end of his government

Recently declassified meeting minutes between the two leaders show how Washington was well aware of Moscow's grievances over NATO expansion, but went ahead anyway

More than 160 years after the first tram was inaugurated in the Egyptian city, the pace of life has forced change, replacing the much-loved old carriages holding memories of a bygone age