Research on the Quantitative Causal Transmission of Stock Price Fluctuations of Listed Companies in the Rare Earth Industry Chain

Table 2

Characteristics of the influence of the proportion of main products on causality.

Perspective	Influence the process	Regularity
Upstream	is a positive indicator when calculating the upstream-to-midstream causal relationship; is a negative indicator when calculating the midstream versus upstream causal relationship; halves the impact when calculating causality with downstream	Upward control downward conduction; Up is negative, and down is positive; Halving the impact between upstream and downstream
Midstream	is a positive indicator when calculating the upstream-to-midstream causal relationship; is a negative indicator when calculating the midstream versus upstream causal relationship; is a positive indicator when calculating the midstream versus downstream causal relationship; is a negative indicator when calculating the downstream versus midstream causal relationship
Downstream	is a positive indicator when calculating the downstream versus midstream causal relationship; is a negative indicator when calculating the causal relationship between midstream and downstream; halves the impact when calculating causality with upstream