Why did A shares fall and US stocks fell?

A shares fell and US stocks fell, which has become a conditioned reflex of China investors. This phenomenon may have the following reasons:

1, the global economy is a * * * body, the US economy is dominant, and the decline of US stocks will inevitably affect A shares;

2. China A-share market is still a semi-closed developing stock market, and the stock market system needs to be further improved to get out of its own independent development path;

3. At present, the A-share market is unable to withdraw from the domestic economic form, the level of inter-agency management is relatively weak, the awareness of institutional value investment is low, and domestic investors have low trust in institutions.