Put another way, the waste has already occurred, long before the titular event: someone decided to throw the dice on some capital, and at that moment it's a write-off, either it sells and turns a profit or it's money spent. Period, doesn't matter what happens to it after that.
If you want to solve waste, regulate the business practice.
I don't see that such regulations even need to be restrictive. Indeed they ought to be profitable. Don't make things you aren't going to sell, only stock what you need -- lean manufacturing probably helps a lot, and this is already practice in many markets. The problem arises in part, in trying to make too much profit too soon: making an initial investment and expecting immediate payoffs (i.e. having product manufactured, and placing it on the marketplace), versus a slower burn with lower best-case rewards, probably the same average outcome, and less materiel wasted.
Tim