Apparantly it was written by JFK in his
Economic Report of the President, January 1963, however the article in which it has been referenced was written by Arthur Laffer in the Wall St Journal published August 2.
http://online.wsj.com/article/SB1000...googlenews_wsj
It fits in nicely with a News Corporation newspaper who regularly publish heavily right leaning articles.
It should be noted though that Arthur Laffer was part of Reagan's "Economic Policy Advisory Board" which among other things created mass inequality among Americans and probably did it's bit to engineer the second biggest crash on economic markets of the 20th Century.
In practical terms, the theory is questionable and in practice doesn't work:
http://www.washingtonpost.com/wp-dyn...-2004Jun8.html
The fiscal shift in the Reagan years was staggering. In January 1981, when Reagan declared the federal budget to be "out of control," the deficit had reached almost $74 billion, the federal debt $930 billion. Within two years, the deficit was $208 billion. The debt by 1988 totaled $2.6 trillion. In those eight years, the United States moved from being the world's largest international creditor to the largest debtor nation.
To some economists, the impact was clear. Interest rates rose in the late 1980s and early 1990s, the economy slowed, then slipped into recession, and productivity barely advanced. Americans feared their nation had slipped into the shadows of Japan and Germany.
Whilst chuck34 may have come across a quote, it's one that might sound nice, but in practice doesn't work.
The cake IS a lie.