Accounts of causation ask what distinguishes a cause from something that merely happens earlier. Regularity theories answer in terms of temporal order, contiguity, and recurring patterns, without adding a causal power or necessary connection in the world. Other theories appeal to counterfactual dependence, processes, powers, or production.
This question concerns the relation between a cause and its effect. It does not treat Dependent Origination's account of suffering and its cessation as a rival theory of that same relation; that account is linked as a separate question.