Saudi Arabia held its ‘Davos in The Desert’ this week, announcing a host of multi-billion-dollar initiatives designed to transform its economy. With major question marks over the viability of the headline projects, will investors stump up the cash?

Saudi Arabia’s Public Investment Fund (PIF) this week unveiled its first ever business plan, an extraordinarily ambitious roadmap aimed at overhauling the Saudi economy and reducing its dependence on oil revenue under the...