The IO model aggregates high-level expenditures annually, regionally, and by sector. It presumes uniform pricing across industries for their specific outputs, which may differ from the actual price paid for a particular product. This discrepancy is minimized when expenses involve various parties and are distributed over time but that it’s more of a consequence than a major driving factor to change your expenses. Additionally, the Exiobase model focuses on the base price received by producers, excluding fluctuations due to trade/transport margins or taxes.