1, economically speaking, gold is inversely proportional to the dollar. Because gold, as a hard currency, can resist inflation, it is said that gold will rise when the dollar depreciates. Similarly, commodities as resources are inversely proportional to the US dollar. So gold is directly proportional to commodities and inversely proportional to the dollar. The above is a simple economic principle, but it is not, otherwise the whole world will be rich, right? If you want to speculate in dollars or gold or commodities, I suggest that you think the three are not related. Any theory that can find the relationship between these three varieties is useless, or just an excuse, especially those stock and financial commentators, who want to find out the reasons for the rise and fall of varieties, so it matters, but it doesn't matter. This is my advice as a futures trader for many years.

2, this is not true, it has been answered above, and it has nothing to do with them. We say this because people only sum up the rules afterwards, and the human brain can't actually absorb a lot of information at the same time, so we regard the similarity we have seen recently as the rules. In the United States in the last century, some experts thought that the rise and fall of stocks could be judged according to the length of women's skirts. Now it seems ridiculous.

3. Commodities generally refer to varieties in futures, and gold can also be regarded as commodities. Gold is gold and has nothing to do with other varieties.

Finally, if you still want to fry a certain variety according to their relationship, I can only wish you good luck!

Supplement: Some varieties are still related, such as soybean, soybean meal and soybean oil, which almost go up and down together.