Understanding the 2008 Financial Crisis

Feb 7, 2025

Lecture Notes: 2008 Financial Crisis - Issues and Lessons

Introduction

  • Finance often overlooks historical lessons.
  • History offers guidance amid changing financial rules, products, and services.

Early 2000s Financial Context

  • Investors seek safe returns post-tech bubble.
  • Mortgages become attractive due to regular interest payments and real estate as collateral.

Rise of Mortgage-Backed Securities (MBS)

  • Investment banks bundle mortgages into MBS for investors.
  • Government entities (Fannie Mae and Freddie Mac) support this strategy.

Mortgage Lending Boom

  • Lenders face high demand for mortgage securities.
  • Endless demand leads to rapid mortgage lending and home buying.

Credit Default Swaps and Insurance

  • Insurers sell credit default swaps as hedges against defaults.
  • Excessive policies sold per mortgage without sufficient coverage.

Risky Loans and Subprime Mortgages

  • Lenders lose incentive to avoid risky borrowers due to mortgage resale.
  • High-risk (subprime) borrowers given loans, often under predatory conditions.

Investment Bank Practices

  • Investment banks sell Collateralized Debt Obligations (CDOs) filled with risky assets.
  • Complex derivatives like synthetic CDOs increase speculative risks.

Role of Rating Agencies

  • Fail to accurately assess risk, granting high ratings to toxic assets.

Subprime Borrower Defaults

  • By October 2007, significant defaults and foreclosures occur.
  • Real estate market becomes saturated with foreclosed homes.

2008 Financial Crisis

  • Housing prices drop sharply in 2008.
  • Domino effect triggers the financial crisis.
  • Massive defaults on CDOs despite high safety ratings.
  • Lehman Brothers declares bankruptcy on September 15, 2008.

Global Impact

  • Global economic slowdown and loss of American jobs.
  • Financial institutions receive government bailouts.

Aftermath and Regulation

  • Dodd-Frank Act introduced in 2010 to regulate financial practices.
  • Lessons highlight the importance of preventing greed from overriding common sense.