I'd say that most of our economic problems, whatever our country, are due to sheer incompetence at every level, Governmental, institutional and individual.
We think that feeding an increasing world population might be beyond the planet's resources, yet the world currently wastes about 1.3 billion tonnes of food annually. America alone discards about $43 billion worth of processed food every year. That is, food that is considered to be inedible because it has passed its 'use-by' or' best-by' date, or food that is not eaten because people are too picky or choosy, or because the restaurant has provided too big a serve.
Food is wasted, or used as animal fodder, because it doesn't meet the standards of flawless appearance that many individual consumers seem to demand. Food is often processed in a similar way, conceptually, to Hasselblad's production of its recent compact Lunar camera. That is, take a perfectly nutritious Sony NEX-7, enhance its appearance, attempt to make it tasty, then sell it for 4x the price.
In fact, the food industry is even more ludicrous than Hasselblad. At least the Lunar is a fully functional NEX-7. The processing of food to enhance its appearance and taste usually results in a degrading of nutritional value, through the addition of artificial flavouring, preservatives, fructose, salt etc, and the removal of valuable fibre.
In addition to this enormous wastage of food, the individual tends to simply eat too much. About 65% of all Americans are overweight, and about half of those are actually obese. The consequences of such overeating are increased medical costs, eventually. I haven't got any figures for the total quantity of food that is overeaten, that results in the varying degrees of obesity, but add that to the 1.3 billion tonnes of known waste, and you might end up with a figure of 2 billion tonnes or more. It would be impossible to calculate the additional cost of medical care that results from the hedonistic pleasures of overeating, but I'm sure they would be considerable.
I see all this as incompetence at the individual level.