Unlock the Editor’s Digest for freeRoula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.Investors are betting on further weakness in the US dollar after its recent falls, as the fallout from last month’s banking crisis limits how far the Federal Reserve can raise interest rates and US investors hunt overseas for returns.After an 18-month bull run that took it to a 20-year high against a basket of currencies in September last year, the greenback has been in retreat as analysts have scaled back their expectations...