[jellicle]

"Dynamic" is a word intended to invoke the idea that the USA is young, fast-moving, growing, while Europe is old, slow, near-death.

It doesn't have any meaning other than to invoke this common US belief. It's part of the American exceptionalism story.

[AnimalMuppet]

No, it has a real meaning. How many new businesses are started each year in the US vs the EU? For an existing company, how easy is it to enter a new line of business? How easy is it to hire new workers?

Those things are how dynamic the economy is. It's hard to measure in a rigourous way, but in the US it is distinctly easier for a business to start/expand than it is in the EU.

Digression, so I can get shot at from all sides: This dropped under Obama. Again, it's hard to put concrete numbers on it, but things started happening more slowly - I suspect because regulation became more onerous.