# Copper and Rail traction

Their prices have moved together.

Source page: https://www.materialinsights.org/links/copper-and-rail-traction/

[Copper](https://www.materialinsights.org/commodities/copper/) (commodity) and [Rail traction](https://www.materialinsights.org/energy/e_rail_traction/) (energy): 1 relationship.

## How they are linked

### 1. Price link: motors and wiring

*Cost and price · Weak · Both ways*

Traction motors, transformers and overhead catenary use large amounts of copper. The equipment index shows no clear link, with monthly moves correlating at -0.01, because railway orders fix prices long before delivery.

- **-0.01** monthly change correlation
- **-0.13** 12-month change correlation
- **0.10** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.