What is the loss in total surplus that occurs when an economy produces at an inefficient quantity, such as a quantity forced by a price control, called?

1. Deadweight loss measures a market-wide inefficiency, not any single buyer's or seller's gain. 2. It arises whenever the traded quantity is pushed away from the efficient equilibrium quantity. 3. It represents mutually beneficial trades between willing buyers and sellers that never happen. 4. Consumer surplus and producer surplus measure individual gains from trades that do happen, which is a different concept. _Source: OpenStax Principles of Macroeconomics for AP Courses (CC BY 4.0), Ch 3 "Demand and Supply", section 3.5 | Demand, Supply and Efficiency_