olemus
vahetusväärtusega toode või teenus

Wiktionary:
1. anything movable (a good) that is bought and sold
2. something useful or valuable
4. (marketing) undifferentiated goods characterized by a low profit margin, as distinguished from branded products

ülevaateid
https://en.wikipedia.org/wiki/Commodity

https://www.commoditiesdemystified.info/pdf/CommoditiesDemystified-section-a-en.pdf