2 links have been added on this idea.
  1. Often though Islamic banking was “interest-free”. but according to this it isn’t, and I don’t know if it can exist can it?

    ” A unique feature of Islamic banking, in theory, is its profit-and-loss sharing (PLS) paradigm. In practice, however, we find that Islamic banking is not very different from conventional banking. Our study on Malaysia shows that only a negligible portion of Islamic bank financing is strictly PLS based and that Islamic deposits are not interest-free, but are closely pegged to conventional deposits.”