越武鱼历险记之Efficient Market

2018/10/08

One day Dr W. Yu was walking down the 1st Ave with Yoofay. There was a $100 bill lying on the ground.

As Yoofay reached down to pick it up, Dr W. Yu said, “Don’t bother. If it were a real $100, someone should have already picked it up.”

(The original story is from: A Non-random Walk Down Wall Street)