The introduction of electronic shelf labels (ESLs) in US grocery stores like Walmart, Kroger, and Whole Foods Market has prompted anxieties among consumers and lawmakers regarding the potential for "surge pricing." Critics, including Senators Elizabeth Warren and Bob Casey, expressed concerns that these digital tags could enable stores to raise prices rapidly during busy periods, for specific items on hot days, or before weather events. They argued that widespread adoption of ESLs might allow large grocery chains to exploit consumers and increase profits.
However, industry experts and a recent study suggest these fears may be overstated. A study co-authored by Ioannis Stamatopoulos of the University of Texas at Austin, along with researchers from UCSD and Northwestern, found no evidence of demand-based dynamic pricing in US grocery retail after tracking transaction data from over 100 stores that implemented ESLs. Retailers, including Kroger and Whole Foods, have also stated they have no plans to use ESLs for dynamic or surge pricing, emphasizing their use for operational efficiency, such as reducing labor for manual tagging and minimizing paper waste. David Bellinger, a senior analyst at Mizuho Financial Group, anticipates price changes with ESLs to be infrequent and primarily price reductions, as significant price increases could alienate shoppers.
One key reason for the lack of surge pricing, according to Stamatopoulos, is the difficulty in detecting real-time demand surges within store aisles. Additionally, retailers are aware that consumers would likely switch stores if faced with higher prices at checkout. While some elected officials have sought to ban or limit ESLs, citing concerns about price consistency for all shoppers and potential job displacement, other benefits cited include ensuring online and in-store prices remain consistent and facilitating quicker markdowns of perishable items. The primary goal for retailers, beyond competition, is to implement overnight price adjustments or immediate price cuts for shoppers, avoiding in-day price increases.
