# 49. Manipulation of bias and heuristics in decision making ## 49.5. Methodology/Refinements/Sub-species ### 49.5.20. Endowment effect People often demand much more when selling an object than they would be willing to pay for it. A manipulator can intentionally inflate the price of an object by trying to procure it from a victim. This may make the object too expensive to sell thereafter, or make the victim value the object more.