To better understand economic exchanges, we must consider items of exchange other than monetary quantities. Classifying these items of exchange generically as "commodities" provides an accurate framework for economic exchanges, so long as two conditions are fulfilled:
A coherent ontology of commodities —encompassing all tradable goods and services — is the indispensable foundation for a sound theory of price formation. Such a theory is vital not only for effective macroeconomic policy but also for microeconomic enterprise strategy, as it directly enables accurate cost-of production analysis and a true assessment of Return on Investment (ROI)..