 The interrelatedness of markets and other institutions is also confirmed by sociological research on the “varieties of capitalism” and similar approaches. They argue that rather than there being one “best” set of institutions, there are certain sets of institutions in the economic and the political realm that fit together better than others: they form “institutional complementarities”. As Hall and Soskice show, one can distinguish “liberal” from “coordinated” market economies in which mutually related mechanisms reign with regard to areas such as industrial relations between employers and employees (or unions), institutions for vocational training and education, corporate governance, or inter-firm relations. In liberal market economies, as they predominate in Anglo-Saxon countries, market mechanisms are much more pervasive; for example, employment contracts are typically shorter. In coordinated market economies, as one finds them for example in continental Europe, other forms of coordination, e.g., collective bargaining, play a greater role (Hall and Soskice 2001). Such interrelations, which can be neglected in highly abstract theorizing, should be taken into account when political philosophers address concrete questions about markets in “non-ideal” theory (as is done, for example, in Keat 2008). Philosophers have often focused on rules and regulations while taking individuals’ preferences as given, implicitly adopting an “economic” perspective on markets. But a “sociological” perspective, in which the generation of preferences and the wider social context are also taken into account, allows one to see other ways in which the outcomes of markets can be changed. Changes in different institutions, in individuals’ preferences, and in the “ethos” that rules in certain markets should, ideally, go hand in hand and be consistent with one another. It is unlikely that the current problems in which markets are involved, such as global justice and climate change, can be solved by relying only on one of these instruments. The desirability and feasibility of different market and non-market arrangements for addressing these issues, together with questions about the international dimension of markets and how they can be geared towards normative goals such as human flourishing and greater equality, are among the most important contemporary research areas about markets.