On the chessboard of the global economy, the dollar index, gold and crude oil are three important pieces. The relationship between the two is complex and interdependent, and * * * affects the trend of the world economy. The US dollar index is an index that comprehensively reflects the US dollar exchange rate in the international foreign exchange market, and it is an important tool to measure the degree of exchange rate changes of the US dollar against a basket of currencies. In the 1970s, the close relationship between the US dollar and oil was formally established, and the US dollar became the only pricing currency for oil. When the dollar appreciates, oil becomes more economical; When the dollar depreciates, the price of oil becomes more expensive.

Generally speaking, when the US economy performs strongly, the international oil price rises and the US dollar appreciates. The dollar is often a "safe haven" for funds, so when a large number of funds choose the dollar as a "safe haven", these funds are likely to flow out of the international crude oil market, thus strengthening the dollar index and weakening the international oil price.

As an important country of global crude oil consumption, the economic situation of the United States can not be ignored. When the American economy is prosperous, the global demand for crude oil naturally rises, thus pushing up the international oil price. However, excessive oil prices may also have a negative impact on the US economy.

In addition, a sudden factor leading to the rise in oil prices is war. Comparing the Iran-Iraq War in the late 1970s with the Gulf War in the early 1990s, the latter led to a sharp rise in oil prices in a short period of time, but then the Organization of Petroleum Exporting Countries (OPEC) greatly increased production to make up for the gap of 3 million barrels per day in the oil market after Iraq suffered economic sanctions, which shows that OPEC played a decisive role in international oil prices.

Therefore, wb emphasizes that we can't judge the market trend mechanically by the inherent negative correlation between the US dollar and crude oil, and we can't simply predict another related indicator by an index that is not leading. They provide 24-hour guidance and planning assistance to better grasp the market trends.