The world has come to depend on capital from the region more deeply than many realise, says Mohamed El-Erian for the Financial Times. PHILADELPHIA, Pennsylvania: As the world assesses the continuing economic damage from the Middle East war, much of the focus has been on how long it will be until “normal” energy production and shipments resume. That is the most pressing issue, of course. But among the many other questions investors and policymakers should consider is a financial one: How will