People can change the volume, the location and the composition of their income, and they can do so in response to changes in government policies.
Let me just try to give you sort of the intuitive one here on the stimulus funds. If you have a two-person economy - let's imagine we have two farms, and that's the whole world, just two farms. If one of those farmers gets unemployment benefits, who do you think pays for him? Am I going way over your heads today?
The trade deficit is the capital surplus and don't ever think of having a capital surplus as being a bad thing for our country.
California is the highest-tax state in the nation and has been for a long time. It has the highest-paid teachers in the nation, by far - $400 a month more than New Jersey - and yet California is the third lowest state on test scores for fourth and eighth grade English and math in the nation, and has been at the low level for a long, long time.
I used the so-called Laffer Curve all the time in my classes and with anyone else who would listen to me to illustrate the trade-off between tax rates and tax revenues.
The Laffer Curve illustrates the basic idea that changes in tax rates have two effects on tax revenues: the arithmetic effect and the economic effect.