&gt;<i>Banks quite often convince people to by into funds they know won&#x27;t perform</i><p>Please provide an example where a bank &quot;convinced&quot; people to buy something it &quot;knew&quot; wouldn&#x27;t perform.  That would be fraud.  I&#x27;m sure it occurs, but certainly not &quot;quite often&quot;.<p>And, no, Goldman Sachs going short securities it sold as a market-maker isn&#x27;t an example of such.