If capital accumulation is the single most important process of capitalism, then what is capital? We all might assume capital is an economic entity rooted in production and consumption, but Jonathan Nitzan claims otherwise. He argues that capital is, instead, a mode of power. Nitzan also describes the separation of economics from politics and the bifurcation of the economy into the real and nominal spheres. (Part One of a two-part interview; Part Two airs Wednesday.)