The article links to the actual paper, which would be a good place to look for these details. For example... """ We calculate the bite of the large retailer’s

The article links to the actual paper, which would be a good place to look for these details. For example... """ We calculate the bite of the large retailer’s minimum wage as the fraction of job ads by other employers with pre-period wages below the announced minimum wage, within detailed occupation, employer, and commuting zone (“CZ”) categories. This approach mirrors that of papers estimating the causal effect of the federal minimum wage using state-level variation in the portion of the state’s wage distribution under the new higher minimum wage (Card, 1992; Bailey et al., 2021). Here, however, we are able to exploit variation in bite at a much finer level, across tens of thousands of employers and hundreds of occupations and commuting zones. This level of variation allows us to precisely estimate effects and conduct several robustness checks to rule out alternative explanations for wage increases. """