Antitrust Radar

Fixed-clock source validation

Sector Source Concordance

Compare 2017-2022 sector employment or firm-share changes in the Economic Census and Business Dynamics Statistics. Matching sector codes do not make the two source populations identical.

20172022Jobs
Descriptive correlation0.826across 17 share-point pairs
Same sign
15 / 17
Opposite signs
2
Median absolute gap
0.180 pp
Largest gap
0.472 pp

Descriptive concordance, not source equivalence.

01Economic Census2017 and 2022 concentration-table counts
02Business Dynamics Statistics2017 and 2022 longitudinal counts
03Exact NAICS bridge17 shared broad sectors, two denominators

Compare shifts. Keep programs separate.

Matched-source workspace

One clock, two published sector universes.

Every point joins one broad NAICS sector across the 2017 and 2022 Economic Census concentration tables and BDS. Shares are recalculated within the same 17-sector overlap for each source and year.
Exact joins
17
broad sectors
Same sign
15 / 17
exact displayed shifts
Descriptive r
0.826
share-point changes
Median gap
0.180 pp
absolute source gap

Cross-source relationship

Do sector shares move together?

X: Economic Census change / Y: BDS change / fixed marker size / shared symmetric percentage-point scale
45-degree paritySelected sector
Employment share-point changes by broad sector, 2017-2022Horizontal position is the Economic Census employment share change and vertical position is the BDS change across the same 17-sector overlap. The parity line marks equal displayed change. Information is selected at +0.113 pp in Economic Census and -0.078 pp in BDS.Transportation and warehousing / Economic Census +0.472 pp / BDS +0.944 pp / gap +0.472 pp / Both gain48Professional, scientific, and technical services / Economic Census +1.019 pp / BDS +0.562 pp / gap -0.457 pp / Both gain54Health care and social assistance / Economic Census -0.439 pp / BDS -0.013 pp / gap +0.426 pp / Both lose62Administrative and support and waste management and remediation services / Economic Census +0.552 pp / BDS +0.239 pp / gap -0.313 pp / Both gain56Wholesale trade / Economic Census -0.450 pp / BDS -0.225 pp / gap +0.225 pp / Both lose42Construction / Economic Census +0.174 pp / BDS +0.376 pp / gap +0.202 pp / Both gain23Accommodation and food services / Economic Census -0.950 pp / BDS -0.767 pp / gap +0.183 pp / Both lose72Manufacturing / Economic Census -0.306 pp / BDS -0.126 pp / gap +0.180 pp / Both lose31Educational services / Economic Census +0.038 pp / BDS -0.134 pp / gap -0.172 pp / Census gain / BDS loss61Retail trade / Economic Census -0.242 pp / BDS -0.389 pp / gap -0.147 pp / Both lose44Finance and insurance / Economic Census +0.220 pp / BDS +0.079 pp / gap -0.141 pp / Both gain52Other services (except public administration) / Economic Census -0.127 pp / BDS -0.249 pp / gap -0.122 pp / Both lose81Arts, entertainment, and recreation / Economic Census -0.072 pp / BDS -0.164 pp / gap -0.092 pp / Both lose71Real estate and rental and leasing / Economic Census +0.096 pp / BDS +0.048 pp / gap -0.048 pp / Both gain53Utilities / Economic Census -0.015 pp / BDS -0.025 pp / gap -0.010 pp / Both lose22Mining, quarrying, and oil and gas extraction / Economic Census -0.082 pp / BDS -0.078 pp / gap +0.004 pp / Both lose21Information / Economic Census +0.113 pp / BDS -0.078 pp / gap -0.191 pp / Census gain / BDS loss51
17 exact sector joins / fixed marker size / the 45-degree line is equality, not a fitted trend

Sector Source Concordance joins the same 17 broad NAICS sectors and fixed 2017-2022 clock across Economic Census concentration tables and Business Dynamics Statistics. The programs remain separate: each has its own construction, coverage, revisions, and published denominator, so values and share shifts are not interchangeable. Correlation, same-sign counts, parity positions, and gaps are descriptive; near-zero signs can flip with small revisions or rounding. They do not define antitrust markets or support causal, competition, productivity, or harm inferences. NAICS 11 and 55 remain outside this 17-sector overlap.

Source custody and calculation

A concordance is a check, not a merger.

The desk holds the clock and NAICS bridge fixed, then calculates each program's represented-sector denominator independently before comparing percentage-point shifts.

  1. 01Join

    Match the 17 broad sectors available in both Economic Census concentration releases and BDS.

  2. 02Normalize

    Divide each sector count by its own program-year total across that fixed overlap.

  3. 03Compare

    Subtract 2017 share from 2022 share, then calculate BDS minus Economic Census.

  4. 04Bound

    Report sign, correlation, parity, and gap as descriptive diagnostics only.

Sector Source Concordance joins the same 17 broad NAICS sectors and fixed 2017-2022 clock across Economic Census concentration tables and Business Dynamics Statistics. The programs remain separate: each has its own construction, coverage, revisions, and published denominator, so values and share shifts are not interchangeable. Correlation, same-sign counts, parity positions, and gaps are descriptive; near-zero signs can flip with small revisions or rounding. They do not define antitrust markets or support causal, competition, productivity, or harm inferences. NAICS 11 and 55 remain outside this 17-sector overlap.

Sector Source Concordance | Antitrust Radar