Re. Goodwill = Wohlwollen

Goodwill could also be described as 'Kulanz' in German when used in the sense, 'He did it for them on goodwill" ('aus Kulanz'). The economic meaning F.Steve describes is either 'Firmenwert', 'ideeler Firmenwert' or simply 'Goodwill' in German. If you're getting touchy-feely then 'Wohlwollen' is fine though.

- Ex propinquitate benevolentia tolli potest, ex amicitia non potest.