It is not a roar, but the major global economies are finally making noise

The world economy is expected to grow by 3.9 per cent this year and next, up from 3.7 last year, and 3.2 per cent in 2016, according to the IMF

A decade after the world descended into a devastating economic crisis, a key marker of revival has finally been achieved. Every major economy on earth is expanding at once, a synchronous wave of growth that is creating jobs, lifting fortunes and tempering fears of popular discontent.
 
No tidy, all-encompassing narrative explains how the world has finally escaped the global downturn. The United States has been propelled by government spending unleashed during the previous administration, plus a recent $1.5 trillion shot of tax cuts. Europe has finally felt the effects of cheap money pumped out by its central bank.