No, they account for shrinkflation: https://www.bls.gov/opub/btn/volume-12/measuring-shrinkflation-and-its-impact-on-inflation.htm https://www.bls.gov/opub/btn/

No, they account for shrinkflation: https://www.bls.gov/opub/btn/volume-12/measuring-shrinkflation-and-its-impact-on-inflation.htm https://www.bls.gov/opub/btn/volume-12/measuring-shrinkflati... They also try to account for changes in quality (they call it hedonic quality adjustment): https://www.bls.gov/cpi/quality-adjustment/questions-and-answers.htm https://www.bls.gov/cpi/quality-adjustment/questions-and-ans...