Did rising production costs, rather than higher markups, drive consumer price increases?
Core argument: US total supply-chain markups were stable from June 2018 through June 2023, covering the pandemic and the inflationary period; for the products sampled, rising production costs rather than a net increase in markups were the primary driver of higher consumer prices.
We study markups and pricing strategies along the supply chain. Our dataset combines detailed price and cost information from a large global manufacturer with matched retail prices collected online for the period July 2018 through June 2023. The supply-chain markup reflects the wedge between the price that consumers pay and the production costs, and it usually takes on values between 0 (price equals cost) and 1 (prices substantially greater than costs). In the US, total markups were stable from June 2018 through June 2023, covering the pandemic and the recent inflationary period. Retail prices increased in 2022, but total markups did not. Thus, for the products in our sample, the primary driver of increased consumer prices was an increase in production costs, rather than a net increase in markups. However, when we examine each stage of the supply chain separately, we do find time-series variation in markups at the firm level. In the second half of 2020, manufacturer markups increased while retail markups fell. In 2022, retail markups increased while manufacturer markups fell. As a result, although manufacturer and retail markups vary over time, they lead to limited fluctuations in total markups.




