Help with Marcoeconomics for cype only

1.      Why did housing prices rise rapidly during 2002-2005? Why did the mortgage default rate increase do sharply during 2006 and 2007 even before the 2008-2009 recession began?

2.      What happened to the credit standards (e.g., minimum down payment, mortgage loans relative to the value of the house, and creditworthiness of the borrower) between 1995 and 2005?  Why did the credit standards change?  How did this influence the housing price bubble and later the default and foreclosure rate?

3.      When did mortgage default and housing foreclosure rates begin to rise rapidly?  When did the economy to into recession? Was there a causal relationship between the two?  Discuss

4.      Some charge that the Crisis of 2008 was caused by the “greed” of Wall Street firms and other bankers.  Do you agree with this view?  Do you think there was more greed on Wall Street in the first five years of this century than during the 1980’s and 1990’s? Why or why not?