Causal Inference on Total, Direct, and Indirect Effects ...
https://link.springer.com/referenceworkentry/10.1007/978-94-007-0753-5_295In the first part, total, direct, and indirect effects are defined, the second part deals with causal inference, i.e., in the second part, it is shown how causal effects are identified by estimable quantities. In each part, there are two levels, a disaggregated and a reaggregated one.
Mediation (statistics) - Wikipedia
https://en.wikipedia.org/wiki/Mediation_(statistics)In the diagram shown above, the indirect effect is the product of path coefficients "A" and "B". The direct effect is the coefficient " C' ". The direct effect measures the extent to which the dependent variable changes when the independent variable increases by one unit and the mediator variable remains unaltered. In contrast, the indirect effect measures the extent to which the dep…