Author
Listed:
- Gilbert L. Skillman
- Roberto Veneziani
Abstract Underscoring the economic significance of the Knightian distinction between risk and uncertainty, Don Katzner forcefully challenges the continued dominance of the expected utility model based on subjective probability in macroeconomic analysis and offers in its place a simple yet elegant model of decision making inspired by the pioneering work of G.L.S. Shackle. In doing so, Katzner lends support to a research program to identify a more coherent and empirically grounded theory of decision making under uncertainty. Our paper makes three contributions to this program. First, we argue that the appropriate choice of a model of individual behavior under uncertainty cannot be adjudicated merely on logical, a priori grounds, but must ultimately be based on consistency with observed behavior. There are many internally consistent models and their external conditions of validity hardly ever rely on inconceivable scenarios. Second, while Katzner’s model certainly provides a plausible foundation for understanding choice under uncertainty, we suggest that it is somewhat underdetermined. It requires further theoretical articulation to yield testable predictions which differentiate it from competing approaches. Third, we discuss recent experimental findings that may need to be addressed by any satisfactory theoretical account of decision making under uncertainty.
Suggested Citation
Gilbert L. Skillman & Roberto Veneziani, 2023.
"The problem(s) with representing decision processes under uncertainty,"
Journal of Post Keynesian Economics, Taylor & Francis Journals, vol. 46(3), pages 420-439, July.
Handle:
RePEc:mes:postke:v:46:y:2023:i:3:p:420-439
DOI: 10.1080/01603477.2023.2222711
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