weakening of the $A??..a pure guess...that was 4 years ago!, you might as well do a google search or find old an economic text book then wait here...people usually answer question from what they know from the top of their head, not many (that i know of) go out of their way to do the actual research for you
and have you thought of doing a little research yourself before posting a whole bunch of question which you expect people to answer for you? (don't mean to be nasty)
now common, i know you're an avon sales representative and all, but you've got at least a little bit of intelligence! so let's see some motivation
*everything that ToO LaZy^* has said has no intentions of being offensive/...blah blah blah or harmful to anyone in any way*