I live in a country that imports 50% of the food. As long as the population produces something that others will trade for, that tends to work out ok. However,

I live in a country that imports 50% of the food. As long as the population produces something that others will trade for, that tends to work out ok. However, should global food trade suddenly stop, I may be one of those starving. Edit: just to be clear: Global refusal to trade food is extremely rare. What happens a lot more often, is that some country is unable to purchase food abroad due to either some blockade or lack of purchasing capacity.