fungi-what

I'm not sure I understand the concept of fungibility enough to decide it if it necessary for a good to be a commodity.  But then we haven't defined exactly what a commodity is either...a dilemma. I don't think that just because a good is popular or unique means it can't be a commodity. Clearly, the Mona Lisa is not a commodity, but are diamonds? Emeralds? Things can have artistic value beyond the standard set for it as a traded commodity. Tulips are reproducible and are grown in many places (today), so they would be a commodity just as the roses from Colombia. They were definitely a fad (I still have a Princess Diana beanie baby somewhere...). The Coffee Paradox defined a commodity as "goods in a world market where all the actors recognize a standard of quality that is not attached to processing or manufacturing". We haven't agreed on that definition but it could be a good place to start. And using that definition, I think tulips are a commodity.