It's not obviously true that a 'micro cap' stock exchange couldn't exist that traded, among other things, equity for your favorite local brewpub. The issue is t

It's not obviously true that a 'micro cap' stock exchange couldn't exist that traded, among other things, equity for your favorite local brewpub. The issue is that there is a surprisingly large amount of compliance, accounting and especially audit expense that would go into such a thing. Without all that overhead, you just have a system ripe for abuse... and with all that overhead, you don't have a profitable investment opportunity.