Laws and tendencies in Marxist political economy

Whilst terms like ‘law of the tendency’, ‘tendency law’ and ‘tendential law’ appear in Marxist political economy, they are unclear. This paper identifies the main conceptions of laws and tendencies and disambiguates them. Part 1 differentiates between law as (i) event regularity ; (ii) event regularity/tendency ; and (iii) tendency . Part 2 focuses on (ii) identifying five interpretations: tendency as a trend, cyclical variation, stochastically specified law, counterfactual event and a deliberately imprecise concept . Part 3 introduces tendency as the (transfactual) way of acting of a thing with properties . Part 4 explains why this conception of tendency is impossible to mathematise.