Extended data

If you want to say that pvc is related to that kind of peripheral futures, I will treat it as oil. Because pvc is a chemical derivative of petroleum, the price trend of international crude oil futures affects the price trend of pvc, just like the relationship between soybean futures and soybean oil or soybean meal futures. There is no need to argue that when raw materials go up, commodities will definitely go up, futures oil will go up and pvc prices will definitely go up.

However, we should analyze the problem dialectically. For example, when soybean futures go up, soybean oil futures go up, but soybean meal futures prices go down. This is because the rise of soybean oil and soybean futures will stimulate the market behavior of soybean refining into soybean oil, and a large number of soybean meal will be formed by processing soybean oil in large quantities. Therefore, after soybean futures rise for a period of time, soybean meal will be reduced in price.

If we analyze pvc, we should first look at the price of raw materials, including oil, coal and some raw materials for pvc production, such as raw salt. The demand for pvc in China and some developing countries is very huge, but the raw material for pvc production in China has always been coal, so the high international oil price is not very high for pvc in China, because China is rich in coal resources, but once crude oil falls, it will have an impact on the price of domestic pvc, because imported pvc is cheaper, which is affected by the upstream raw materials of Pvc. In addition, if we look at the domestic demand for pvc, such as the demand for pvc in the domestic real estate industry in recent years, the price of Pvc will rise. In addition, many consumer goods, such as household appliances and plastic products, rely on pvc. If the country's economic situation is optimistic and grows rapidly, the demand for PVC will increase and the price will rise. If domestic consumption is not strong, or the economic situation is not good, the supply of pvc exceeds demand, that is, raw materials such as oil and coal will rise, and pvc will not rise. Therefore, there are many aspects that affect the price of commodity futures. To look at the problem dialectically, it requires investors' keen analytical ability. No matter from which angle, as long as it is reasonable, logical and not dogmatic, economics or investment behavior or finance is the most uncertain science in human knowledge. Nothing is static, so human beings can't know when an economic crisis will break out, and they don't know how to defend it, or there is no optimal and stable formula for economic construction. These are uncertain, especially for investment games, unique and simple views are the most critical, and we must not stick to the rules.

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