Finance and Financial Management Commons^™

Supply Based Explanation Of The Equity Premium Puzzle, Richard H. Serlin

Richard H. Serlin

All of the explanations for the equity premium puzzle I have seen in the literature are based on the demand side; trying to find utility functions for a representative investor and ex-ante probability distributions for returns that would explain investors demanding such high average returns for stocks relative to bonds. I suggest a supply side explanation: The long run supply curve for corporate stock may simply be extremely long and flat, and consistently about 5 ½ percentage points in return higher than the premium bonds supply curve, even at stock quantities as high as the entire national savings rate. Why? …