No, there is a shortage, leading to a shortage, leading to a shortage, ... If it was negative feedback, the "error" (shortage in production) would lead to an e

No, there is a shortage, leading to a shortage, leading to a shortage, ... If it was negative feedback, the "error" (shortage in production) would lead to an error cancelling signal, and therefore an increase in production. Positive feedback has error leading to larger error, shortage leading to more shortage.