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α: calibrated so average coauthorship-adjusted count equals average raw count
This paper reconstructs how Buchanan himself answers his question “what should economists do?” The way Buchanan tries to stir a middle course between the extremes of an a priori logic of human action and economic behaviorism is sketched as broadly Kantian. Other than a conventional Kantian, Buchanan's game theoretically inspired “dual worlds”-approach, as reconstructed, is fully compatible with a scientific world view. However, bringing together “political philosophy and predictive science”, Bukantianism has to cope with remaining tensions between the empirical and the normative.