As the continent buckles under the weight of the most serious refugee crisis since World War II, the breakdown of that zone, known as the Schengen Area, has loomed as a dark prospect.
But border checks are bad for European business, experts say. They would even stunt economic growth through a vicious cycle that starts with higher labor costs — thanks to long lines at borders — and ends with declining sales and lower production.
For the European Union, the economic losses could reach up to $1.5 trillion by 2025.
And thanks to an increasingly interconnected world, says Thiess Petersen, a senior economic expert at the Bertelsmann Foundation, the US economy won’t escape unscathed.
“This is a whole mechanism of economic consequences, and sooner or later it will have an effect on the US,” he told GlobalPost.
That’s why the US is looking at a potential loss of around $304 billion over the next 10 years, more than EU powerhouses Germany, France or the UK would each stand to lose.
To be fair, that’s the “pessimistic” estimate, the think tank finds. But it’s more than likely the United States will lose at least around $100 billion.
One major reason is that slower economic growth in European countries would mean they’d buy fewer imports from America. Four of the United States’ top 20 trading partners — Germany, the Netherlands, France and Switzerland — are Schengen Area countries that would take economic hits from new border controls.
In recent months, EU officials have warned numerous times that suspending the Schengen Area and reintroducing border controls across the continent may become necessary if the huge crowds of Middle Eastern and North African migrants don’t subside soon. More than 110,000 migrants or refugees have crossed the Mediterranean to Greece and Italy so far in 2016, the International Organization of Migration said Tuesday.
Several countries, such as Germany, Austria and Denmark, have already put up temporary border checks on their frontiers. 
By Dan Peleschuk, GlobalPost
This article is syndicated from GlobalPost.