Mineral tax will live shorter. On top of that tax revenues for the government would be low, too. That leads to a Laffer curve-shaped function of tax revenue for the government, in which the “optimal level of taxation” is somewhere in the middle. Any mineral tax must be neutral. Neutral is defined as maintaining incentives for investors to exploit minerals. Therefore, the revenues must exceed the costs. Furthermore, the government must be able to rely on the amount of tax money it receives, therefore, the tax imposed must be as certain and as steady as possible. Often, governments decide to use a
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