Equity Premium Puzzle (EPP) is a finance-focused reference term for equity ownership, valuation, or balance-sheet analysis.
The equity premium puzzle (EPP) is the problem in financial economics of explaining why equities have historically earned much higher returns than safer assets, often more than standard models predict investors should require.
The puzzle matters because it challenges simplified assumptions about risk aversion, consumption smoothing, and investor behavior. If observed equity premiums are much larger than models imply, then either the models are incomplete, the risks are understated, or investor preferences are more complex than basic theory assumes.
If long-run stock returns exceed Treasury-bill returns by more than conventional theory comfortably explains, economists ask whether rare disasters, behavioral forces, market frictions, or model limitations help bridge the gap.
A student says, “The equity premium puzzle means stocks are not risky after all.”
Answer: No. The puzzle is about why the premium has been so large, not about denying that equities are risky.