Remembering 1971 (link):
http://en.wikipedia.org/wiki/Nixon_Shock The gold standard, removed more than once in the U.S.A. (link):
http://en.wikipedia.org/wiki/Gold_standard If people do not get to bored on the subject, try reading the following links:
Monetary, Fiscal, and Trade policies; a sudden change in any of these will be a economic shock to the system. The latest, corporations receive subsidies and pay no taxes (fiscal), banks must have a certain percentage of deposits in their vaults called a 'Reserve Requirement.' (link)
http://en.wikipedia.org/wiki/Public_financ... Of course, we need to mention the Fed (link):
http://en.wikipedia.org/wiki/Federal_Reser... I did mention 1971 and the shock to the system. Here is a graph of the unemployment rate, it took 20 years and a bunch of statical manipulation to get it to the acceptable 4 to 6 percent of all non-institutional working age persons in the U.S.A. The came Bush Jr.

Here is some data from the Federal Reserve. Lowering the Reserve Requirement expands the money supply. They knew they were in trouble in 2007 when a sudden 180 occurred in the Reserve Requirement.
Short analysis:
year
2000, up $60 (in millions of dollars)
2001, up $154
2002, down $201
2003, down $689 (who says the Fed does not throw an election)
2004, down $506 (2003, 2004, and 2005 equals the big bubble)
2005, down $369 (is there any money left in the bank vaults?)
2006, down $146 (somebody, please turn-on that economic AC)
2007, up $57 (oopses, too little too late)
2009,* down $270 (that and a 760 billion dollar bailout, the banks will lend)
2009, down $1,240* (that will show those banks, now they have to lend)
* not a mistake, just people screwing-up big-time in the name of recovery, or are they?
Federal Reserve Data:
93. Effective for the reserve maintenance period beginning December 28, 2000, the low reserve tranche for net transaction accounts was reduced from $44.3 million to $42.8 million. The reserve requirement exemption was raised from $5.0 million to $5.5 million. The actions raised required reserves by an estimated $60 million.
94. Effective for the reserve maintenance period beginning December 27, 2001, the low reserve tranche for net transaction accounts was reduced from $42.8 million to $41.3 million. The reserve requirement exemption was raised from $5.5 million to $5.7 million. The actions raised total required reserves by an estimated $154 million.
95. Effective for the reserve maintenance period beginning December 26, 2002, the low reserve tranche for net transaction accounts was increased from $41.3 million to $42.1 million. The reserve requirement exemption was raised from $5.57 million to $6.0 million. The actions lowered total required reserves by an estimated $201 million.
96. Effective for the reserve maintenance period beginning December 25, 2003, the low reserve tranche for net transaction accounts was increased from $42.1 million to $45.4 million. The reserve requirement exemption was raised from $6.0 million to $6.6 million. The actions lowered total required reserves by an estimated $689 million.
97. Effective for the reserve maintenance period beginning December 23, 2004, the low reserve tranche for net transaction accounts was increased from $45.4 million to $47.6 million. The reserve requirement exemption was raised from $6.6 million to $7.0 million. The actions lowered total required reserves by an estimated $506 million.
98. Effective for the reserve maintenance period beginning December 22, 2005, the low reserve tranche for net transaction accounts was increased from $47.6 million to $48.3 million. The reserve requirement exemption was raised from $7.0 million to $7.8 million. The actions lowered total required reserves by an estimated $369 million.
99. Effective for the reserve maintenance period beginning December 21, 2006, the low reserve tranche for net transaction accounts was reduced from $48.3 million to $45.8 million. The reserve requirement exemption was raised from $7.8 million to $8.5 million. The actions raised total required reserves by an estimated $146 million.
100. Effective for the reserve maintenance period beginning December 20, 2007, the low reserve tranche for net transaction accounts was reduced from $45.8 million to $43.9 million. The reserve requirement exemption was raised from $8.5 million to $9.3 million. The actions raised total required reserves by an estimated $57 million.
101. Effective for the reserve maintenance period beginning January 1, 2009, the low-reserve tranche for net transaction accounts was raised from $43.9 million to $44.4 million. The reserve requirement exemption was raised from $9.3 million to $10.3 million. The actions lowered total required reserves by an estimated $270 million.
102. Effective for the reserve maintenance period beginning December 31, 2009, the low-reserve tranche for net transaction accounts will rise from $44.4 million to $55.2 million. The reserve requirement exemption will rise from $10.3 million to $10.7 million. These actions will lower total required reserves by an estimated $1.24 billion.
Reading the earlier information just gets better and better, especially around the election time of 1991 and 1999.
(link):
http://www.federalreserve.gov/releases/h3/... Now you did want to talk about major changes to the economy, didn't you?