About: http://webisa.webdatacommons.org/174556117

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Black-Scholes option-pricing model, used by us, requires the input of highly subjective assumptions, including the option??s expected life and the price volatility of the underlying stock.
http://www.w3.org/ns/prov#wasQuotedFrom	sec.gov