latter

Does the "latter" in this context imply "Dan Graham"?

Context:

In other words, whether art in the city or the city in art, or the city as art, I would wish to suggest that the phenomenon of urban living evidently matters more and more both in the art artists endeavour to make and in that which is held to come within the province of art. Not only that, but this impulse is indicative of an important, complex and differentiated conflation of orientations around minimalism, conceptualism, situationism, social practice, the built environment and, ultimately, performance. As the artist Jeff Wall proposes in an essay on his artist colleague Dan Graham, the latter:

establishes the primacy of social subject-matter as the historically essential problem to be posed by conceptualism, and at the same time identifies the single grand subject which will remain central to the development of the movement’s historical self-consciousness: the city. [. . .] Graham recognises that the conceptual critique indeed has an inherent subject, which he explicitly begins to investigate – the historical development of the city as site of cultural conflict.