Kalecki was one of an important generation of Cambridge economists. Here, Tracy Mott's impressive book examines the relationship of Kalecki's economics to different economic areas and its relationship to major alternative schools, such as Keynes and Marx. Mott looks at Kalecki's 'principle of increasing risk' and how it gives the way in which the reproduction and expansion of wealth can bring a coherent unity to economic analysis. In so doing, it makes sense out of the fundamental conclusions of Keynesian economics on the underemployment of labour and capital.