# Combustion road vehicles and Natural rubber

Their prices have moved together.

Source page: https://www.materialinsights.org/links/combustion-road-vehicles-and-natural-rubber/

[Combustion road vehicles](https://www.materialinsights.org/energy/e_road_ice/) (energy) and [Natural rubber](https://www.materialinsights.org/commodities/rubber/) (commodity): 1 relationship.

## How they are linked

### 1. Price link: end-use demand

*Cost and price · Moderate · Both ways*

Most natural rubber goes into tyres for cars and trucks, so vehicle output matters. The proxy is a US vehicle price index, which tracks car prices rather than tyre demand, and shows little link, slightly negative: monthly moves correlate at minus 0.17.

- **-0.17** monthly change correlation
- **-0.40** 12-month change correlation
- **-1.89** fitted elasticity

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