Introduction

We do not always evaluate a change only by comparing its final outcomes. We may also respond to whether it feels like giving something up, keeping what is already ours, or moving away from the current arrangement.
Three related ideas help explain these patterns: loss aversion, the endowment effect, and status quo bias. They concern how reference points and current possession can affect value and choice.
These effects are not universal rules about every person or decision. Real switching costs, uncertainty, rights, and personal meaning can also make keeping something reasonable. The useful task is to identify what is actually influencing the choice.