9  Model parameterization

9.1 Supply Chain

Complete model data and documentation can be found in the GitHub repository for the project.(Link to be added)

9.2 Estimated margins

Final data: Estimated margins by location along the dry bean supply chain.

We use Meat Price Spreads data from the USDA Economic Research Service, Historical monthly price spread data for beef, pork, broilers. We calculate average margins from 2022-2024 (following our price calculations).

Retail margin = (Choice beef retail value - Choice beef wholesale value) / Choice beef retail value

Wholesale margin = (Choice beef wholesale value - Choice beef net farm value)/Choice beef wholesale value

Note: A margin is the percentage of the selling price that is profit. Margin = (selling price - cost)/selling price.