There are a range of websites and other sources that deal with the issue of business ethics and Jewish religious law and tradition, but let me note one — which I put together. The title tells it all [except that virtually all of the items on the list are in English]:
Readings on Traditional Jewish texts on Labor and Worker Rights
http://www.jewishlaborcommittee.org/2006/01/readings_on_traditional_jewish_1.html
If you know of additional items that we might want to add to the list, just drop me a line.

CR, are you saying that religious Jews with unethical business practices is too recent a phenomenon to be considered a tradition?

No, I’m saying this cartoon isn’t that funny – at least not nearly as funny as some of your other stuff.