You are a commercial real estate broker in New York City and you are slowly, but surely making a name for yourself among the most successful companies in the region. One of your clients, a developer named Leonard S. Kynard, has been working on a deal to sell a number of buildings zoned for mixed-use development to the Allman Brothers Group, Ltd. The closing occurred yesterday afternoon. You had a scheduling conflict, so one of your associates attended on your behalf. It is your understanding, however, that both parties did sign the sales agreement at the closing. You are excited to receive a final copy of all closing documents later today. You are also excited about the large commission that you'll be receiving for your months of hard work negotiating this deal. Explain regional economic integration and give examples.