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Relationship, requires input

Residential construction requires input Refined copper

The stored status is what a reviewer approved. The level below it is what the overlapping data support; the two are shown side by side and only a human moves the status.

Stored statusEstablished relationEvidence level (latest analysis)not analysed yet

Mechanism, evidence, reviewer judgements

The edge as stored

Residential construction requires input Refined copper1 evidenceEstablished relation

Residential construction depends on Refined copper.

Mechanism

Building wiring and much plumbing use copper; USGS reports building construction as the largest copper end use in the United States. Aluminum wiring at a larger gauge is the conductor substitute.

Evidence

  • documentUSGS, Copper statistics and informationusgs.govEnd uses (building construction, electrical and electronic products) and substitutes (aluminum in power cables and some transformer windings).checked 2026-09-07

Substitutes for Refined copper

  • aluminum Aluminum branch wiring and service entrance cable at a larger gauge.
Status
established_identity_or_engineering_relation
Reviewer confidence
0.90
Stated strength
0.50
Lag
not stated
Version
curated_seed_v1
Reviewed
2026-09-07

Confidence and strength are curated judgements recorded with the edge, not measured quantities.

Entity pages: Residential construction, Refined copper.

Not computed

Statistical evidence

No analysis has been stored for this edge. The causal.analyze_all job runs monthly over every edge with a catalog metric linked to both entities; edges without a series on both ends are not analysed.

Not computed

Causal estimate

A causal estimate needs at least 20 overlapping periods and was not attempted for this edge yet.

What each rung means

Levels

  1. Level 0: No association found

    the overlapping data show no significant association.

  2. Level 1: Correlation only

    statistically associated in the overlapping periods; no direction, no mechanism.

  3. Level 2: Predictive lead/lag

    one series historically contains predictive information about the other.

  4. Level 3: Mechanism supported

    a documented physical, economic or institutional mechanism with cited evidence.

  5. Level 4: Causally supported

    a backdoor-adjusted estimate that survived refutation, on stated assumptions.

  6. Level 5: Established relation

    follows from engineering, accounting or scientific structure.

Every stored run, newest first

Analysis history

No runs stored.