# Combustion road vehicles and Polybutadiene rubber

Their prices have moved together.

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

[Combustion road vehicles](https://www.materialinsights.org/energy/e_road_ice/) (energy) and [Polybutadiene rubber](https://www.materialinsights.org/chemicals/polybutadiene/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: demand driver

*Cost and price · Weak · Both ways*

Tyres for new and existing vehicles are the main use. The vehicle price proxy does not move with the rubber proxy, 0.03 monthly, because car prices follow model cycles rather than rubber costs.

- **0.03** monthly change correlation
- **0.05** 12-month change correlation
- **0.87** fitted elasticity

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