It seems like the change between the colonial/westard expansion era and the present is that we went from just evicting another Indian tribe when we needed land, to installing "friendly" governments in South America that would allow us to buy up their countries' farm lands. (With the decline of the Soviet Union, we've had a harder time making up excuses.)
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It depends on how fairly we're getting the resources we consume. If we're installing dictators in South America on the basis of who will and who won't approve the sale of their countries' land to American corporations, well there's no market force associated with the justice or injustice with which a resource is obtained. However: if you're getting it unjustly, it eventually will collapse.
Taken as a whole, our country and several South American countries might collectively have already surpassed population equilibrium, but we're blind to it because it isn't affecting us, and they're blind to it as well because they think we're to blame for all of it. (Instead of both sides having too many people). As our own population continues to grow, we'll just tell more of their children that they have to starve, and most Americans will be totally oblivious.
The funny thing about international industrial capitalism is that we're only dealing with their upper class (basically similar to a nobility), for the most part, instead of with them. As individuals, the common people wouldn't trade their country's land for cars and TV sets, but their leadership would, because their leadership is in no danger of going hungry.
As the total domestic supply of food decreases in their countries, the leaders' food costs go up from maybe something like 3% to say 5%, of their income, while the food costs of a field worker might go up from say 75% to 125% (meaning they can't honestly afford enough food to eat).
Basically, you can dodge any market force you want, just by choosing the right people to deal with. As a group, lead by a corrupt dictator, the group might choose to go hungry (as in... the dictator might choose that for them), in exchange for a few TV sets, a private plane, and some DVD's to watch while he (err... they?) flies around in it. And, the market will behave as if that made sense.