… is from pages 55-56 of the 2016 Mercatus Center re-issue of my late colleague Don Lavoie’s superb 1985 volume National Economic Planning: What Is Left? (footnote deleted; links added):
The intricate complexity of our economy is such that removing our profound ignorance of its detailed workings is not just an ambitious and difficult task, as [Wassily] Leontief avers; it is a hopeless dream. The fundamental defect of virtually all proposals for planning – from Marx to Leontief – lies in what Michael Polanyi calls their “objectivist,” or what F.A. Hayek calls their “rationalistic,” concept of their nature of human knowledge.


The intricate complexity of our economy is such that removing our profound ignorance of its detailed workings is not just an ambitious and difficult task, as
