A bigger market will in turn create a bigger demand. When the folks that are ultimately supplying that market for profit find their supply dwindling what's the next thing they do? They start restocking their inventorys. In this case, it's transporting pigs back into the areas they control, regardless of the legality's in doing so.
I don't think that will happen. I'd bet that it's easier and cheaper to pen-raise pigs and more profitable to supply the domestic market.
But that's just my guess.
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