“Within-Firm Productivity Dispersion: Estimates and Implications”, Scott Orr2022-11 ()⁠:

This paper develops a flexible recipe for identifying unobserved input allocations, as well as quantity-based & revenue-based total factor productivity (TFP) across product lines, for multi-product producers, using demand-side & supply-side information.

Applying variants of this recipe to a panel of plants manufacturing machinery in India from 20007200717ya yields:

sizable within-plant TFP differences. Removing an average plant’s lowest-performing product increases the unweighted average of plant-level revenue-based productivity by 10%–65%. A 1 standard deviation decline in product-level revenue-based TFP generates around a 6 percentage point increase in the probability of dropping that product.