An exception to the law of supply arises when there is a reduction in the quantity supplied with increasing prices. Several commodities fall under exceptions like farm produce, economic, perishable commodities, business change, and more. Farm products do not follow the law of supply due to their high dependency on weather conditions. Perishable products cannot be stored for a long period and thus have a short shelf life. Some of the examples include flowers, fruits, vegetables, and more, which the seller sells even if the prices are not rising.