>> So why is older insulin more expensive in the US than elsewhere, by a large margin? Here you go kid: https://en.wikipedia.org/wiki/Free-rider_problem https:

>> So why is older insulin more expensive in the US than elsewhere, by a large margin? Here you go kid: https://en.wikipedia.org/wiki/Free-rider_problem https://en.wikipedia.org/wiki/Free-rider_problem Read that, and then you can explain to me the answer to your question.