From Hayek to Keynes: G.L.S. Shackle and ignorance of the future

G.L.S. Shackle stood at the historic crossroads where the economics of Hayek and Keynes met. Shackle fused these opposing lines of thought in a macroeconomic theory that draws Keynesian conclusions from Austrian premises. In Shackle scheme of thought, the power to imagine alternative courses Of action releases decision makers from the web of predictable causation. But the spontaneous and unpredictable choices that originate in the subjective and disparate orientations of individual agents deny us the possibility of rational expectations, and therewith the logical coherence of market equilibrium over time.