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Monday, April 20, 2009

Game Theory

Traditional applications of game theory attempt to find equilibria in these games. In an equilibrium, each player of the game has adopted a strategy that they are unlikely to change.

今朝去灣仔見客,發現兩件 D 好得意嘅事情
1. 金鐘一大班人上車,全部都係灣仔落車,即係地鐵設計有問題,點解當年要用金鐘轉車?
2. 體現到博奕論, 原來地鐵上車大家係玩緊一個遊戲:
  i. 如果大人繼續上車,架車就唔會閂門。
ii. 架車要上唔到,先至唔會有人再迫上去。
對於一班只係搭一個站嘅乘客,最緊要自己上車上得快,架車閂門閂得快,走又走得快。但無理由吓吓都要成車人,迫到沙甸魚咁先開車。而最快令架車閂門嘅方法,就係企响門口,唔俾人入,坐緊嘅人亦唔會叫企响車門嘅人企入少少。出面嘅人入唔到,車門就會閂,架車就會開。所以車廂中間係好空吓,但係架車都會開走。咁令到坐緊嘅人繼續舒服咁坐,企緊嘅人只係企一個站就走人,完全平衡到車入面嘅人目的。

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