Antitrust Radar

Joined Census sector evidence

Sector Structure Observatory

Compare broad sectors using industry concentration, business entry, employment, and merger-review data. Census and HSR measures keep their own years and populations; unlike measures are not combined into a score.

Source-bounded sector composition

17-sector map

Area
2023 BDS employment
Coverage
133.5M workers

Color2022 classification NAICS sector identity

17 categorical NAICS identities / no ordering

BDS year2023area + readout

62Health care22M / 16.5%44-45Retail trade16.1M / 12.0%72Food & accommodation14.6M / 10.9%31-33Manufacturing12.3M / 9.2%56Administrative services11.9M / 8.9%54Professional services10.4M / 7.8%23Construction7.6M / 5.7%52Finance & insurance6.9M / 5.2%48-49Transportation6.5M / 4.8%42Wholesale trade6.2M / 4.7%81Other services5.7M / 4.3%61Education3.8M / 2.8%513.5M / 2.7%71532.4M / 1.8%2221

Selected / NAICS 21 / 0.4% of map areaMining, quarrying, and oil and gas extractionColor / Sector identity / Categorical / no ordering

2022 structure
559.2
median detailed-industry HHI
17 / 21 published
2017-2022 strict change
+10.0
median HHI-point change
73.3% strict-pair coverage
2023 business flows
9.436%
establishment entry rate
BDS broad-sector rate
FY2024 merger review
78
acquired-entity transactions
4.0% / rank 7 of 19
Tile area compares 2023 BDS employment across the 17-sector Census overlap. Employment is a workforce count, not revenue, output, or a legal market measure. Color shows 2022 classification NAICS sector identity. NAICS sector color is categorical and has no high-low order. The BDS year control applies to BDS area, entry-rate color, and the selected business-flow readout when those elements are present; share-shift color additionally uses the explicit BDS baseline. Economic Census structure, strict change, and HSR composition retain their own fixed release clocks. The selected readings remain separate sources and denominators and are not combined into a score, legal market, causal estimate, merger rate, or assessment of competitive harm.
012017 Economic Censusstrict historical anchor
022022 Economic Censuscurrent concentration distribution
032023 Business Dynamicsestablishment and job flows
04FY2023-FY2024 HSRacquired-entity composition

Four families, never one score.

Cross-domain sector workspace

Structure, change, business flows, and federal review by sector

17 of 17 sectors in the current slice
Sectors
17
17 sector rank universe
Exact cells
170
no composite score
Source families
3
2017-2023 releases
Row order
HHI change
descending exact value

Economy-wide evidence matrix

17 sectors across 10 bounded measures

Columns retain their own source, vintage, unit, and 17-sector rank universe. Intensity is meaningful only within its column.
Lower within-column rankHigher within-column rankRows ordered by HHI change
Exact broad-sector structure, strict history, and business-flow values. Each rank is calculated only within its measure.
SectorCurrent structure2022 / Economic CensusStrict industry change2017-2022 / Economic Census strict matchesBusiness flows2023 / Business Dynamics Statistics
638.2#1 / 1745.6%#1 / 1756.4#1 / 1750.0%#10 / 1710.578%#10 / 1711.499%#3 / 1712.429%#12 / 1712.678%#5 / 17-0.248 pp#16 / 1724.859%#6 / 17
360.8#6 / 1729.9%#8 / 1717.5#2 / 1768.2%#3 / 176.719%#16 / 178.243%#11 / 1711.997%#13 / 179.960%#11 / 17+2.037 pp#11 / 1719.919%#11 / 17
439.3#4 / 1738.5%#5 / 1712.4#3 / 1759.2%#6 / 176.870%#15 / 176.997%#16 / 179.548%#15 / 178.283%#15 / 17+1.265 pp#14 / 1716.565%#15 / 17
133.9#10 / 1732.8%#6 / 1711.4#4 / 17100.0%#1 / 177.924%#14 / 177.132%#15 / 179.257%#16 / 178.932%#13 / 17+0.326 pp#15 / 1717.863%#13 / 17
182.0#9 / 1723.5%#10 / 1710.7#5 / 1761.5%#5 / 1712.905%#4 / 1711.833%#2 / 1713.743%#9 / 1714.829%#1 / 17-1.087 pp#17 / 1727.485%#3 / 17
559.2#3 / 1743.7%#2 / 1710.0#6 / 1754.5%#8 / 179.436%#12 / 177.685%#14 / 1720.020%#1 / 178.774%#14 / 17+11.246 pp#1 / 1717.547%#14 / 17
54.3#14 / 1712.8%#14 / 173.6#7 / 1772.7%#2 / 179.993%#11 / 178.146%#12 / 1715.133%#7 / 1711.503%#9 / 17+3.630 pp#7 / 1723.006%#9 / 17
116.9#11 / 1729.4%#9 / 172.3#8 / 1756.3%#7 / 1712.647%#5 / 1711.301%#4 / 1717.635%#3 / 1713.864%#3 / 17+3.771 pp#6 / 1727.729%#2 / 17
19.4#16 / 176.4%#17 / 171.6#9 / 1762.5%#4 / 1713.016%#3 / 1711.082%#5 / 1716.710%#5 / 1713.469%#4 / 17+3.240 pp#8 / 1726.939%#4 / 17
35.8#15 / 178.4%#15 / 171.4#10 / 1753.8%#9 / 1710.783%#9 / 177.708%#13 / 1713.539%#11 / 179.450%#12 / 17+4.089 pp#5 / 1718.899%#12 / 17
94.9#12 / 1717.8%#12 / 170.1#11 / 1750.0%#10 / 1712.473%#6 / 1711.031%#6 / 1715.072%#8 / 1712.633%#6 / 17+2.438 pp#9 / 1725.267%#5 / 17
277.4#7 / 1740.0%#4 / 17-0.8#12 / 1742.9%#13 / 1714.851%#1 / 1714.670%#1 / 1713.617%#10 / 1711.596%#8 / 17+2.020 pp#12 / 1723.193%#8 / 17
15.0#17 / 178.0%#16 / 17-1.3#13 / 1740.0%#14 / 1711.040%#8 / 179.081%#9 / 1717.536%#4 / 1711.949%#7 / 17+5.586 pp#3 / 1723.899%#7 / 17
75.6#13 / 1715.0%#13 / 17-1.8#14 / 1740.0%#14 / 1711.167%#7 / 178.441%#10 / 1710.585%#14 / 176.259%#17 / 17+4.326 pp#4 / 1712.518%#17 / 17
192.2#8 / 1721.2%#11 / 17-3.3#15 / 1735.7%#16 / 1713.716%#2 / 1710.450%#7 / 1718.049%#2 / 1710.165%#10 / 17+7.884 pp#2 / 1720.330%#10 / 17
405.8#5 / 1731.0%#7 / 17-4.1#16 / 1747.6%#12 / 178.115%#13 / 179.608%#8 / 1716.192%#6 / 1714.344%#2 / 17+1.847 pp#13 / 1728.689%#1 / 17
615.9#2 / 1741.6%#3 / 17-23.9#17 / 1714.3%#17 / 175.266%#17 / 175.691%#17 / 179.098%#17 / 176.707%#16 / 17+2.391 pp#10 / 1713.414%#16 / 17

Each cell preserves one published measure and ranks sectors only within that column. Color intensity and rank cannot be compared across columns, combined into a score, or interpreted as competitive quality, market power, causality, or a legal antitrust market.

Source custody and method

Four bounded evidence families.

The sector code is the bridge. Concentration levels, strict historical changes, business flows, and HSR acquired-entity composition remain separate measures with separate denominators.

01 / Current structure

2022 Economic Census Concentration of Largest Firms

U.S. Census Bureau / accessed 2026-07-17. Source custody remains attached to every public sector row.

02 / Historical anchor

2017 Economic Census Concentration of Largest Firms

U.S. Census Bureau / accessed 2026-07-18. Source custody remains attached to every public sector row.

03 / Business flows

2023 Business Dynamics Statistics

U.S. Census Bureau / accessed 2026-07-19. Source custody remains attached to every public sector row.

04 / Federal merger review

Hart-Scott-Rodino Annual Reports, FY2023 and FY2024

Federal Trade Commission and U.S. Department of Justice. Acquired-entity sector counts, release shares, source wording, and review-stage aggregates retain each report's own published universe.

Each row joins 2022 six-digit Economic Census concentration-distribution summaries, strict 2017-2022 same-code and same-label industry history, and 2023 Business Dynamics Statistics sector flows. These vintages and universes differ, so associations are descriptive rather than same-period or causal. Sector medians are not sector HHI values, legal antitrust markets, liability findings, or composite competition scores.

BDS sectors outside the joined concentration universe: 11 Agriculture, forestry, fishing and hunting; 55 Management of companies and enterprises.

This bridge joins only the exact broad-sector NAICS code published by both sources. The 2022 Economic Census sector row measures economy-wide employer-firm structure, while each HSR sector aggregate sums the release's published acquired-entity 3-digit rows. The shared code does not define a legal antitrust market, measure a sector merger rate, establish competitive harm, or score agency performance.

Sector Structure Observatory | Antitrust Radar