# Ethylene and High-density polyethylene

Their prices have moved together.

Source page: https://www.materialinsights.org/links/ethylene-and-high-density-polyethylene/

[Ethylene](https://www.materialinsights.org/chemicals/ethylene/) (chemical) and [High-density polyethylene](https://www.materialinsights.org/chemicals/hdpe/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: feedstock

*Cost and price · Strong · Both ways*

Ethylene is almost all of the raw material, so HDPE is priced as a margin over it. The petrochemical proxy moves with the resin proxy at 0.71 monthly and 0.89 yearly, and closely over the last five years.

- **0.71** monthly change correlation
- **0.89** 12-month change correlation
- **0.17** fitted elasticity

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