A Theory of Supply Function Choice and Aggregate Supply

Joel P. Flynn, Georgios Nikolakoudis and Karthik Sastry

No 33711, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: Modern theories of aggregate supply are built on the foundation that firms set prices and commit to producing whatever the market demands. We remove this strategic restriction and allow firms to choose supply functions, mappings that describe the prices charged at each quantity of production. Theoretically, we characterize firms’ optimal supply function choices in general equilibrium and study the resulting implications for aggregate supply. Aggregate supply flattens under lower inflation uncertainty, higher idiosyncratic demand uncertainty, and less elastic demand. Quantitatively, our theory can rationalize the flattening of aggregate supply during the Great Moderation and steepening during the 1970s and 2020s.

JEL-codes: E31 E32 E50 (search for similar items in EconPapers)
Date: 2025-04
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