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An Overview of mortgage securitization and the financial crisis. Dheeraj Sinha Gaurav Walawalkar Manisha Salian. How it works ?. 2. Lemon Loan, Hot Potato Theory. Gaussian Copula.
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An Overview of mortgage securitization and the financial crisis Dheeraj SinhaGauravWalawalkarManishaSalian
How it works ? 2 Lemon Loan, Hot Potato Theory Gaussian Copula “Off Balance Sheet “ SIV, Bankruptcy Remote, True Sale, Credit Enhancement (Why/Types), Tranches, CDO(Types) Originator Borrower 1 3.2 Rating Agency Issuer/ SIV 3 4 Investor
Formula that Wrecked the Economy Gaussian copula • Blamed as culprit in the credit crunch. Correlation Gaussian Copula Joint CDF
Returns Distribution Where CDF = Cumulative Distribution Function
Returns Distribution Where CDF = Cumulative Distribution Function
Returns Distribution Where CDF = Cumulative Distribution Function
Too many simplifying assumptions • Normally distributed return. • Correlation is not always flat and constant. • Same kind of MBS securities involved in securitization were directly correlated not inversely correlated.
Impact of Securitization • Cost of Credit Securitization rate is inversely proportion with yield spread • Dispersion of risk Monetary policy shocks have negative and significant impact on banks loan growth. • Contagion or transmission of risks to cross markets.
How it happened…. • http://www.youtube.com/watch?v=HSjEyOp2dEM