Meaning
Psychological valuation of a held asset frequently exceeds the objective market price that an unbiased observer would pay. This disparity in worth, called the endowment effect, occurs because the pain of losing something is felt more intensely than the pleasure of gaining it. Once ownership is established, the holder adjusts their baseline, requiring a higher compensation to part with the object.
This bias introduces friction into negotiations and prevents transactions that would otherwise benefit both parties.
Value Inflation
Subjective pricing escalates immediately after an asset changes hands. The endowment effect forces a founder to place an unrealistic valuation on their equity or their position, making them resistant to fair buyout offers. This resistance is driven by an emotional attachment that develops rapidly.
The seller sees the transaction as a personal loss, whereas the buyer views it as an acquisition.
Ownership Bias
Loss aversion dominates decisions involving the transfer of property. When forced to choose, most people choose retention to protect the status quo, even when keeping the asset is inefficient.
Retention Price
Financial costs rise when a holder refuses to liquidate unproductive assets due to their inflated sense of value. Keeping a failing project or an obsolete tool drains the capacity of the team and prevents them from pursuing better opportunities. The founder pays for this bias in wasted hours and missed revenue, holding onto what they have instead of building what is needed.