發送短信 : Short-term return-based contrarian strategies in US future markets : 1987-2002

 __   __    _____     _____      ___      _____   
 \ \\/ //  |  ___||  |__  //    / _ \\   / ____|| 
  \   //   | ||__      / //    | / \ || / //---`' 
  / . \\   | ||__     / //__   | \_/ || \ \\___   
 /_//\_\\  |_____||  /_____||   \___//   \_____|| 
 `-`  --`  `-----`   `-----`    `---`     `----`