1. USD
The US dollar is the legal tender of the United States of America, El Salvador, Panama, Ecuador, East Timor, Marshall Islands, Micronesia (Federated States of), Kiribati and Palau. Dollar banknotes in circulation are all versions of banknotes issued since 1929.
1792 appeared after the passage of the American mint act. At present, the issuance of US dollars is controlled by the Federal Reserve system. Starting from 19 13, the United States established the federal reserve system and issued federal reserve bonds. More than 99% of the banknotes in circulation are federal reserve notes.
The competent department for issuing US dollars is Congress, and the Federal Reserve Bank is responsible for the specific issuance business. After World War II, continental European countries reached an agreement with the United States to use US dollars for international payments. Since then, the dollar has been widely used as a reserve currency in countries outside the United States, and eventually became an international currency.
2. banknotes
The main scene pattern on the front of the US dollar bill is a person's head, and the main color is black. The main landscape pattern on the back is architecture, and the main color is green, but there is little difference between different versions, such as the back of 1934 is dark green, the back of 1950 is grass green, and the back of 1963 is dark green. Because dollar green is an ink made of tree juice, the quality of tree juice is different every time, so the color is slightly different.
The signature above is the signature of the finance minister, and different release years are different finance ministers. Before the 20th century, 1, 5, 10, 25,50-cent banknotes were issued. Compared with the small front page dollar, the big front page dollar is half the size of the small front page dollar. Interestingly, all denominations of dollars are the same size, and $20 is the most used high-denomination banknote in the United States.
3. US dollar index
Usually, the tool we use to analyze the trend of the US dollar is the US dollar index, which is an index that comprehensively reflects the exchange rate of the US dollar in the international foreign exchange market and is used to measure the degree of exchange rate change of the US dollar against a basket of currencies. It measures the strength of the US dollar by calculating the comprehensive rate of change between the US dollar and a selected basket of currencies, thus indirectly reflecting the changes in US export competitiveness and import costs. If the dollar index falls, it means that the dollar depreciates against other major currencies.