sunk cost
サンクコスト、埋没費用
Disposition effect
Endowment effect
Foot-in-the-door technique
Gambler's fallacy
Prospect theory
Psychology of previous investment
Thinking, Fast and Slow
/suto3/google.iconsunk cost
image sunk cost
define sunk cost
wikipedia sunk cost
weblio sunk cost
kotobank sunk cost
jisho sunk cost