This is the set of all the tools that you can buy on the financial market. The law of supply is that the higher the price of the tool, the more people that will be offering it for sale at such an attractive price. Accordingly, the lower the value, the less the market of those who want to sell such a low price. The offer price is called Ask (see). This price is always a bit below the current market price. This difference between prices is called “spread” (see). This is commission, which is taken by the broker (see) on the opening of your transaction. In contrast to the law of supply on the market as there is a law of demand (see).