How Investor Demand and Supply Shape Asset Prices
Summary
The article questions whether asset pricing and investment can be understood only by predicting returns from company characteristics. It uses the example of rose prices on Valentine’s Day: prices rise when demand is concentrated and sellers are scarce, then fall as demand fades. The same goods can therefore trade at very different prices as market conditions change, even though the goods themselves have not changed.
It applies this supply-and-demand perspective to financial markets, arguing that investor demand affects asset prices and that changes in demand can move prices. This contrasts with models in which individual investors are treated as price takers with no effect on market prices. The discussion offers an intuition rather than a formal model or empirical test, and it does not specify how to measure demand or turn it into a trading strategy. Its main lesson is that asset pricing analysis may need to account for investors’ price impact and market clearing, not only asset characteristics and expected returns.
Key ideas
- Prices can change when demand shifts even if the product itself is unchanged.
- Limited supply and inelastic demand can allow prices to rise above sellers’ costs.
- The article argues that investor demand can affect asset prices.
- Treating all investors as price takers can miss how their trading moves prices.
- The discussion is conceptual and does not provide an empirical test or trading rule.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.