Black Scholes Pricing Model - National Business News - Portfolio.com

Black Scholes Pricing Model - National Business News - Portfolio.com: "The model is based on the assumption that a trader can suck all the risk out of the market by taking a short position and increasing that position as the market falls, thus protecting against losses, no matter how steep. Nearly every employee stock-ownership plan uses Black-Scholes as its guiding principle. A pension-fund