發送短信 : A Data Envelopment Analysis Approach to Portfolio Selection: An Application to the Blue Chip Stocks in the Philippine Stock Exchange (2010-2019)

__    __     ___      ______    _____     _____   
\ \\ / //   / _ \\   /_   _//  |  ___||  /  ___|| 
 \ \/ //   / //\ \\  `-| |,-   | ||__   | // __   
  \  //   |  ___  ||   | ||    | ||__   | \\_\ || 
   \//    |_||  |_||   |_||    |_____||  \____//  
    `     `-`   `-`    `-`'    `-----`    `---`