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Nowcasting-Forecasting

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Published American Economic Review Published Jun 2026
Quality Adjustment at Scale: Hedonic versus Exact Demand-Based Price Indices

Gabriel Ehrlich · John Haltiwanger · Ron Jarmin · David Johnson · Ed Olivares · Luke Pardue · Matthew D. Shapiro · Laura Yi Zhao

Layer 1: Overview This paper implements and evaluates methods for constructing quality-adjusted price indices from item-level retail scanner data at scale — across hundreds of product categories, …