Warum geben wir Trinkgeld? (Linktipp 43)

40 Milliarden Dollar Trinkgeld pro Jahr: Zur Ökonomie einer verrückten Gewohnheit: http://j.mp/aLfp5J

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.