This article has some shoddy logic. For the vast majority of drugs, the actual marginal manufacturing price per pill is essentially zero. That means that when the expired pills are thrown away and new pills are manufactured, there is no true economic loss. Rather, all that potentially happens is a transfer between the consumer and the manufacturer. If pill prices were set by some external force, this could at least b…
Anticipating pill expiration and what will be excess supply is a difficult predictive modeling problem. At a practical level, it's difficult for pill expiration date to make it into the price, especially when the purchasers of the pill are different people than those who throw out the pill years down the line.