Methods

The GED-ESG Index is based on publicly available data, data provided by third party vendors, and peer-reviewed models.

The AP3 model is available for free download on Nicholas Muller’s website. The model has been subject to peer-review numerous times.

Users can browse citations to Muller’s papers.

Current Working Paper
There are a variety of ways that companies produce their products. Some produce more pollution than others. The index presented on this site demonstrates how these different types of companies can be ranked using rigorous, quantitative modeling tools.

Indices