To explain the root cause of the financial crisis George Soros uses an oil tanker as a metaphor. In the movie documentary “Inside Job” he basically said that markets are inherently unstable and there needs to be some sort of regulation along the way. The oil tanker has quite an vast frame and, in order to stop the movement of oil from making the tanker unstable, shipping manufacturers have designed them with approximately 8-12 compartments, depending on the size. This maintains the tanker’s stabilty in the water.
After the Deperession the Glass Stegal Act was passed in 1933. This act separated investment and commercial banking activities. At the time, “improper banking activity”, was deemed the main culprit of the financial crash. According to that reasoning, commercial banks took on too much risk with depositors’ money. Therefore to use Soros’ metaphor, a compartment was put into the tanker to make it more stable.
However, in 1999 Gramm–Leach–Bliley Act effectively removed the separation that previously existed between investment banking which issued securities and commercial banks which accepted deposits. The deregulation also removed conflict of interest prohibitions between investment bankers serving as officers of commercial banks. Therefore, the tanker had a compartment/s removed which made it very unstable and it eventually capsized. Consequently the deregulation of financial markets has led to the end of compartmentalisation.