That's the question Marc Bellemare asks in an article in the Wall Street Journal yesterday. The subtitle points out an important truth that likely seems counter intuitive to the masses, "The optimal amount of waste is not zero." Note, Marc doesn't say food waste isn't a potential problem or that we ought not think about ways of reducing waste. Rather, let's not be wasteful in trying to prevent waste. That is, we could end up expending more resources to save food than we reap in benefits, which of course is wasteful.
Here are a couple key paragraphs:
The article covers some of the the same issues Marc and colleagues addressed in their academic article in the American Journal of Agricultural Economics.