I would have thought the opposite was true.
If there is more money , easy money at that then you have the ability to get some of that cash and take RISKS.
Risky assets can lead to greater returns.
I mean if i borrow a 100k im not going to stick it in gold that may return a few % a year if i get lucky.
I am more likely to buy property in an area and speculate on far riskier assets with greater returns , and if it all turns to shit file for bankruptcy and start again when the bankruptcy terms are complete.
Edit: Just keep in mind that interest rates do not really trickle down to Joe and Jane in the street they are more for bank to bank lending and bonds, but they does mean banks will often have more lenient terms for loaning cash.