Errr, how do you export them? For wealth creation you have to have more flowing back out across the fence than flow in. This is wealth transfer again not creation.
In addition to the three classics of agriculture, raw materials production, and manufacturing one might make an argument that banking/stocks/bonds - the whole financial industry creates wealth by organizing capital. However, this activity can easily be moved anywhere as for example offshore banks and the NASDQ.
People and buisnesses from outside NYC invest in properties and buy apartments. You dont have to always physically 'export' a product to sell a product. The art of real estate development in NYC is the ultimate manufactured product.
However, this activity can easily be moved anywhere as for example offshore banks and the NASDQ.
But it really can't be and wont, for far too many reasons to list here.
Usually about now, someone chimes in that we couldn't live without NYC because they have a band or something and some twinkie ballerinas.
The move could happen, but it certainly would not be easy. The economic disruption that would occur (around the world, not just in the US) if NY's financial industry was shut down or forced to move cannot be overestimated.
There's a very real reason why Al Qaeda counts the NYSE and the rest of NY's financial industry as a top target.