Here’s what happened. In 2001, the Federal Reserves increased the bank’s liquidity by lowering the federal funds rate. This enables banks to give out more loans. In order to do this banks lowered their standards and started giving loans to pretty much anyone regardless of whether they have a job or any money at all. These are known as “Subprime Mortgages”. But you may think of them as less than desirable loans. Of course, commercial banks couldn’t just give out loans endlessly.
So, to make room for new borrowers they sold their old loans onto investment banks. Investment banks repackaged those subprime loans and sold them onto investors without disclosing how insecure those loans were. At the time, that didn’t seem to matter. It was one big party : borrowers were buying homes, investors were profiting, and banks kept on selling their loans so they could give out new ones.
But after every massive party comes an equally massive hangover. After good times, interest rates started rising. Suddenly, Subprime borrowers couldn’t afford to pay back their loans and started filing for bankruptcy, causing everyone involved to start panicking. In the space of a few months, the economy had been crushed by the greatest banking collapse since the Great Depression. What happened was that investment bankers had created a massive bubble with their irresponsible trading. And when that bubble burst everyone felt the effect.
So, as to point out, you’re probably convinced that investment banks are evil and we’d be better off without them. Right? Wrong! The 2008 Subprime Mortgage Crisis is just one of many crisis throughout banking history. The market has crashed before and it will undoubtedly crash again. But it’s worth remembering that investment banking, for all its flaws, helped build countries. The railroads mines and IT would never have seen the light of day if it weren’t for the support for the investment banks. And as we look towards an environmentally sustainable future, we’ll need investment to help us rebuild countries too.