The Stock Market Crash 2007-2008

Stock Market Crash Causes:
 - Corporate Corruption (as  always, even it's not announced yet).  
- Overvalued Stocks  (as  always, even it's not announced yet).
- Mortgage crisis.
- Over unregulated financial  institutions (on my opinion).
- Unregulated big speculators  playing short (my opinion again - we have now much bigger number of  speculators including hedge funds who may play short).
After the Crash:
 - Bailout of the financial  institution????
- ???
- ???
 The Stock Market Crash 2000-2002

Stock Market Crash Causes:
 - Corporate Corruption.  
- Overvalued Hi-tech Stocks.
After the Crash:
 - New Rules for Daytraders;
- CEO and CFO Accountability;
- Accounting Reforms.
 The Stock Market Crash of 1987

Stock Market Crash Causes:
 - No Liquidity. During the crash, the markets were not able  to handle the imbalance of sell orders;
- Overvalued Stocks.
After the Crash:
 - Uniform Margin Requirements; 
- New Computer Systems. Stock exchanges changed to new  computer systems that increase data management effectiveness, accuracy,  efficiency, and productivity; 
- Circuit Breakers. The New York Stock Exchange and the  Chicago Mercantile Exchange instituted a circuit breaker mechanism, which  halts trading on both exchanges for one hour should the Dow fall more than  250 points in a day, and for two hours, should it fall more than 400 points. 
 The Stock Market Crash of 1929 

Stock Market Crash Causes:
 - Overvalued Stocks.
- Low Margin Requirements.
- Interest Rate Hikes.
- Poor Banking Structures.
After the Crash:
 - The Securities and Exchange Commission (SEC) was  established;.
- The Glass-Stegall Act was  passed to separated commercial and investment banking activities. 
-  In 1933, the Federal Deposit Insurance Corporation  (FDIC) was established to insure individual bank accounts for up to  $100,000.