If you want to read about this, "industry concentration rate" is a good search term. In general, studies show that US industry concentration (percentage of the

If you want to read about this, "industry concentration rate" is a good search term. In general, studies show that US industry concentration (percentage of the market claimed by the largest entrants) is increasing (indicating a decrease in competition). Here's an example: https://www.federalreserve.gov/econres/notes/feds-notes/a-note-on-industry-concentration-measurement-20230203.html https://www.federalreserve.gov/econres/notes/feds-notes/a-no.... And another: https://bpb-us-w2.wpmucdn.com/voices.uchicago.edu/dist/7/1291/files/2024/06/kwon-et-al-2024-100-years-of-rising-corporate-concentration.pdf https://bpb-us-w2.wpmucdn.com/voices.uchicago.edu/dist/7/129... This doesn't seem like a topic with an irrefutable answer, though, due to the complexity of measuring. Here's an interesting paper on that complexity and a contrary point of view: https://www.nber.org/system/files/working_papers/w32762/w32762.pdf https://www.nber.org/system/files/working_papers/w32762/w327...