Buying bulk and selling produces cheap to locals show up on many of the concepts. This is a great idea of short cutting the system and make it more efficient, but on the other side of the coin, this could also mean harming some other business. Traditional market vendors, grocery shops, convenient stores, to name a few, relay on this "going around" system to make their income.
What do we do to this people / labor then ?
What if we reallocate them to run a different kind of business, the farmer's market, the community kitchen and the dining hall (bazzar) for example.
The management part of it is very crucial. What if the labor is divided by two groups. Group who run the kitchen and group who run the dining hall. The group who run the kitchen will not sell food at dining hall / canteen but will receive a certain amount of free food to take to their families. The other group will sell food cooked earlier by the other group and receive wages. The two groups will take turns.
This could also be a new attraction to invite outside interest into Caldas. Starting from a culinary tourism and will eventually create more business along the way.
I also include the suggested farming / land management method from my previous concept: "redefine comunity farming"
I hope this will complete the sustainable social business cycle.