Instead of pleading with Microsoft for a refund, he just decided to purchase some new video games and a replacement controller with the points.

Companies as feedback machines employ multiple input points: in person, email, Web sites, point-of-purchase CARDS or receipts, conferences and the telephone.

The paper firstly analyses the appreciation and trend of RMB on the basis of purchase power parity, and points out short-term & long-term influences upon export enterprises.