أرسل هذا في رسالة قصيرة: Willingness-to-pay estimation using generalized maximum-entropy: A case study

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