I recently had the pleasure of reading two good novels by Michael Lewis - 'Liar's Poker' and 'The Big Short'. Both are engaging and a far cry from the usual insipid narrating style of usual financial works. Taken together, they offer tremendous insight into capitalism as practiced on Wall Street.
The blame can be put on three key players:
1. Alan Greenspan, then Chairman of the US Federal Reserve
2. Rating agencies like Standard and Poor's and Moody's
3. Greed of Wall Street
Alan Greenspan kept interest rates very low after 2001. Two things happened due to this: a) this allowed borrowers to borrow more. b) people with money looking to make good returns give it to Wall Street banks which converted housing mortgages into bonds. Everyone thought that the price of a house never goes down. The bonds would fetch an interest more than what the investors would get if they deposited money in US banks. Rating agencies blessed these bonds with highest ratings (AAA) and the Wall Street banks were thus able to sell them to interested buyers.
Wall Street symbolizes 2 things: greed and smartness. Traders, bond salesmen, etc. quickly figured out that this can be turned into a money minting machine. So, they devised a system where housing mortgages will be given to even most undeserving (with no real job, no capacity to repay the mortgage, no down payment, lowered interest payment for first 2 years) people. Effectively, people were told to lie in the documents and they got the loan. This way, migrants from other countries working daily wage jobs also got housing loans.
The ratings agencies looked at average FICO (credit) scores and not the individual FICO scores of each person taking the mortgage. So, all that needed to be done was to stuff a bond with mortgages of people with substandard FICO score and put mortgages of some individuals with high FICO score. The only challenge was finding some people with high FICO scores. This was solved by taking advantage of the fact that people with a short credit history or no credit history tend to have high such scores. That's how a migrant also got mortgage. Such a mortgage is basically subprime (below prime). The crisis which it brought is famously known as Subprime Mortgage Crisis or the Financial Crisis of 2008.
Once the ratings agencies stamped AAA rating on such pool of mortgages (a bond), the Wall Street banks sold it to institutional investors, pension funds, university endowment funds, insurance companies (AIG FI) etc. The ratings agencies were in competition with each other and were paid fees by Wall Street banks for the process of ratings. They didn't want to say no to Wall Street as banks would have taken their business to competitive rival firms. It was basically a job done shabbily with utter disregard to the responsibility bestowed upon them.
Wall Street didn't stop there. They collected the most useless tranches (it's like picking the lowest floor from a building where the bond quality deteriorates as you go from top to bottom) from various such rated bonds and created a CDO (Collateralized Debt Obligation). Wall Street is notorious in giving incomprehensible names to products. It has nothing to do with complexity. They just want that common public should believe that they do some magical work by giving their products such esoteric names. To draw an analogy, a CDO is basically all bad apples from dozen different crates put together to create a new crate of apples. Then they got good ratings for this CDO too (like 80 percent AAA rated). AIG FI was a sucker for these bonds and CDOs. Some wall street banks also bought them. They even created a synthetic CDO!
Mike Burry (played by Christian Bale in the movie - The Big Short), a loner with Asperger's and a hedge fund manager, first predicted the crisis by betting against the subprime mortgage bonds. He secured CDS (Credit Default Swaps) from Wall Street Banks. A CDS is simply a bet that bond price of mortgage bonds will crash and in the event of this happening, the bank would pay the insurance securer (Mike Burry) the equivalent amount of the value of such bonds. If the reverse happened (that is, the bond prices didn't crash), Burry would pay fee in installments to the same bank.
He correctly predicted that after 2 years the teaser rate (lower rate of interest initially given to borrowers) would expire and the higher floating rate would kick in. This would happen around 2007 and then the number of defaulters would dramatically increase. This would erode the quality of the bonds, CDOs, and Synthetic CDOs as the underlying asset (the houses) drop in value. This is exactly what happened.
Prominent Wall Street banks like Lehman Brothers and Bear and Stearns collapsed in 2008. Other banks like Goldman Sachs, etc. survived when the US government decided to bail them out with taxpayer money to prevent global meltdown of financial institutions. It also bailed out AIG FI with $85 billion dollars.
There's a brilliant 11 minute video on youtube which is pretty explanatory:
https://www.youtube.com/watch?v=N9YLta5Tr2A
The blame can be put on three key players:
1. Alan Greenspan, then Chairman of the US Federal Reserve
2. Rating agencies like Standard and Poor's and Moody's
3. Greed of Wall Street
Alan Greenspan kept interest rates very low after 2001. Two things happened due to this: a) this allowed borrowers to borrow more. b) people with money looking to make good returns give it to Wall Street banks which converted housing mortgages into bonds. Everyone thought that the price of a house never goes down. The bonds would fetch an interest more than what the investors would get if they deposited money in US banks. Rating agencies blessed these bonds with highest ratings (AAA) and the Wall Street banks were thus able to sell them to interested buyers.
Wall Street symbolizes 2 things: greed and smartness. Traders, bond salesmen, etc. quickly figured out that this can be turned into a money minting machine. So, they devised a system where housing mortgages will be given to even most undeserving (with no real job, no capacity to repay the mortgage, no down payment, lowered interest payment for first 2 years) people. Effectively, people were told to lie in the documents and they got the loan. This way, migrants from other countries working daily wage jobs also got housing loans.
The ratings agencies looked at average FICO (credit) scores and not the individual FICO scores of each person taking the mortgage. So, all that needed to be done was to stuff a bond with mortgages of people with substandard FICO score and put mortgages of some individuals with high FICO score. The only challenge was finding some people with high FICO scores. This was solved by taking advantage of the fact that people with a short credit history or no credit history tend to have high such scores. That's how a migrant also got mortgage. Such a mortgage is basically subprime (below prime). The crisis which it brought is famously known as Subprime Mortgage Crisis or the Financial Crisis of 2008.
Once the ratings agencies stamped AAA rating on such pool of mortgages (a bond), the Wall Street banks sold it to institutional investors, pension funds, university endowment funds, insurance companies (AIG FI) etc. The ratings agencies were in competition with each other and were paid fees by Wall Street banks for the process of ratings. They didn't want to say no to Wall Street as banks would have taken their business to competitive rival firms. It was basically a job done shabbily with utter disregard to the responsibility bestowed upon them.
Wall Street didn't stop there. They collected the most useless tranches (it's like picking the lowest floor from a building where the bond quality deteriorates as you go from top to bottom) from various such rated bonds and created a CDO (Collateralized Debt Obligation). Wall Street is notorious in giving incomprehensible names to products. It has nothing to do with complexity. They just want that common public should believe that they do some magical work by giving their products such esoteric names. To draw an analogy, a CDO is basically all bad apples from dozen different crates put together to create a new crate of apples. Then they got good ratings for this CDO too (like 80 percent AAA rated). AIG FI was a sucker for these bonds and CDOs. Some wall street banks also bought them. They even created a synthetic CDO!
Mike Burry (played by Christian Bale in the movie - The Big Short), a loner with Asperger's and a hedge fund manager, first predicted the crisis by betting against the subprime mortgage bonds. He secured CDS (Credit Default Swaps) from Wall Street Banks. A CDS is simply a bet that bond price of mortgage bonds will crash and in the event of this happening, the bank would pay the insurance securer (Mike Burry) the equivalent amount of the value of such bonds. If the reverse happened (that is, the bond prices didn't crash), Burry would pay fee in installments to the same bank.
He correctly predicted that after 2 years the teaser rate (lower rate of interest initially given to borrowers) would expire and the higher floating rate would kick in. This would happen around 2007 and then the number of defaulters would dramatically increase. This would erode the quality of the bonds, CDOs, and Synthetic CDOs as the underlying asset (the houses) drop in value. This is exactly what happened.
Prominent Wall Street banks like Lehman Brothers and Bear and Stearns collapsed in 2008. Other banks like Goldman Sachs, etc. survived when the US government decided to bail them out with taxpayer money to prevent global meltdown of financial institutions. It also bailed out AIG FI with $85 billion dollars.
There's a brilliant 11 minute video on youtube which is pretty explanatory:
https://www.youtube.com/watch?v=N9YLta5Tr2A