Abstract

This chapter gives a concrete example of a question of current scientific interest where capacities matter: ‘Do the Bell inequalities describing Einstein–Podolsky–Rosen experiments show that causality is incompatible with quantum mechanics?’ The question cannot be answered if we rely on probabilistic theories of causality and laws of associations alone. It takes the concept of capacity and related notions of how capacities operate even to formulate the problem correctly. Econometrics models with correlated errors, it is shown, can explain the EPR results when the correlations are given a capacity interpretation.