He laid the groundwork of a philosophical approach toward Labour Law in British scholarship, which had hitherto been characterised by empiricism. In particular, his concept of "collective "laissez-faire"" was both a description of the British model of industrial relations in the 1960s and a normative model of how industrial relations should be. Industrial relations is conceived as tripartite, with Employers, Employees (through Trade Unions) and the State all engaged as actors. "The relation between an employer and an isolated employee or worker is typically a relation between a bearer of power and one who is not a bearer of power. In its inception it is an act of submission, in its operation it is a condition of subordination." The concept of collective laissez-faire sets out the idea that the law (and the State) should be abstentionist, meaning that the state should allow capital and collective labour to negotiate freely, without extensive legislative interference, unless collective representation is unlikely to yield industrial justice or stability. Philosophically, this can be contrasted with the "market individualism" approach or the "floor-of rights" approach.