The potato is third only to wheat and rice in terms of its value as a food crop in the marketplace. It's adaptable to most any climate, matures quickly, and can produce up to four times as much food per acre as grains. More importantly, in the face of today's economic crisis, the potato has not become a speculative commodity and so remains affordable, although farmers are more likely to look past the potato in favor of crops with a higher profit margin. Also, compared to grains, it is relatively heavy and susceptible to rot in transit, which has largely kept it out of the global food trade. That's an obvious downside as far as exports are concerned, but with governmental support to make farming the tuber economically worthwhile, it could prove to be a good domestic source of food and ease some of the current burden.