# Autocatalysts and Internal combustion engines and gensets

Their prices have moved together.

Source page: https://www.materialinsights.org/links/autocatalysts-and-internal-combustion-engines-and-gensets/

[Autocatalysts](https://www.materialinsights.org/chemicals/autocatalysts/) (chemical) and [Internal combustion engines and gensets](https://www.materialinsights.org/energy/e_engines/) (energy): 1 relationship.

## How they are linked

### 1. Price link: emission control

*Cost and price · Weak · Both ways*

Catalytic converters using platinum-group metals are required on most engines, adding cost when metal prices rise. The platinum proxy shows little link, correlating at 0.13 monthly, because catalyst costs are passed on only with model or contract changes.

- **0.13** monthly change correlation
- **0.01** 12-month change correlation
- **-0.02** fitted elasticity

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