In other words, leading investment banks are doing nothing clever. In fact, you could argue that the banks are predictable and quite stupid. What makes them significant is only that they influence things on very large scales.
The sale of complex derivatives has collapsed, and there is talk of new 'innovative' products. However, I have seen and heard nothing that is actually innovative.
Except, for example, there was an attempt to create a new market for betting on the success of culture producers. For example, speculators could buy shares in future films. This would allow a director to sell his stake, buy shares in rival films, and tank his own product in that order
You can really see that bankers came up with the idea and given the sums of money involved, film directors would replace bankers overnight. Consequently, bankers remind me of lemmings. However, I'm sure that market won't materialise.
In all fairness, the discussed investment banks have failed to impress me and that's why I really want to know their new products. Banks may provide advice to clients on restructuring and acqusitions etc., however, services of that kind can be studied and copied - its just a lot of backoffice numbercrunching and that's done by computers. For example, I have studied AI and path prediction algorithms, etc.
What is the (idealistic) role of investment banks if they can't innovate?