Arthur Laffer Arthur Laffer Arthur Betz Laffer (; born August 14, 1940) is an American economist who first gained prominence during the Reagan administration as a member of Reagan's Economic Policy Advisory Board (1981–89). Laffer is best known for the Laffer curve, an illustration of the concept that there exists some tax rate between 0% and 100% that will result in maximum tax revenue for governments. He is the author and co-author of many books and newspaper articles, including "Supply Side Economics: Financial Decision-Making for the 80s". Laffer is Policy Co-Chairman (with Lawrence "Larry" Kudlow) of the Free Enterprise Fund and serves
Notional amount able to purchase. Hence the notional principal amount is the quantity of the assets and bonds. In the context of an interest rate swap, the notional principal amount is the specified amount on which the exchanged interest payments are based; this could be 8000 US dollars, or 2.7 million pounds sterling, or any other combination of a number and a currency. Each period's rates are multiplied by the notional principal amount to determine the height and currency of each counter-party's payment. A notional principal amount is the amount used as a reference to calculate the amount of interest due on