The new volume on the Law of Political Economy (LPE) devises a highly fruitful analytical approach for anyone interested in a better understanding of Europe’s current economic and political transformation, and in particular, the role of law in it. LPE has an adequate sensorium if one assumes (1) that society is not static but evolving and that theoretical approaches based on ideas of “equilibrium” (or, in the field of law, on “systemic coherence”) are therefore unable to understand social evolution; (2) that social evolution is not merely determined by individual economic interests or by the evolution of capitalism as a whole; (3) that legal structures are among the factors influencing that evolution; and (4) that law, or, to be more precise, public law and legislation (as the contribution by Emilios Christodoulidis insists), might even hold one of the keys to social integration.