From his office in Ballsbridge in Dublin 4, Domhnal Slattery has a piercing, panoramic view of the global economic vista. Avolon, the aviation leasing giant he established a decade ago, has more than 160 customers across 60 separate jurisdictions, all absorbing real-time information about consumer confidence and trading patterns. Economists look to spreadsheets and data points to determine future economic output. Slattery merely needs to pick up the phone and survey the views of some of the world’s leading airline bosses. Based on his conversations, Slattery has a singular view: the world is already in recession, and it is only…