Kane double fires England past Croatia in World Cup thriller
Gill and Kishan hundreds carry India past 400 and to victory
Arnautovic scores penalty as Austria beat World Cup debutants Jordan 3-1
Ghana beat Panama 1–0 in chaotic, charged World Cup Group L match
Dercksen, Kapp help South Africa stumble past Pakistan, despite Sana heroics
Modern Portfolio Theory was not yet adolescent in 1960, when William F. Sharpe, a 26-year-old researcher at the RAND Corporation, a think tank in Los Angeles,...
