One anthropology student blames it on the Chinese mafia and the Lebanese who have moved in. You will see mostly young girls selling goods. They all sell exactly the same things -scarves, bags, jewelry. The locals say most of the goods are made in Pakistan and China. I tend to believe them because I have been to the cooperatives and the merchandise is very different. I am told that the girls are rounded up each night and kept in upstairs rooms in the centro where they are fed a little and sleep. There, they hand over much of what they earn to the guys who make the real money off of the girls' hard work. Basically, they are being pimped out. I feel sorry for them because they are desperate and it doesn't appear that the government is doing anything to help them. Perhaps what is going on is not illegal. I don't think the girls speak much Spanish either, because they don't seem to understand and their lines sound rehearsed.
If you purchase from one of the collectives, you will pay a little more, although they will bargain, but you help many families. The Maya weave and embroider rugs and other textiles. They also make the Panama hats from hennequin and sew and embroider the Guayabera shirts. The last two are similar to those originating in Cuba. When Fidel Castro came into power, many Yucatecans returned to their homeland and began producing these items locally. Since the climates are similarly tropical, they caught on here and now the Yucatan is known for production of these items as well. All of the local men wear the Guayabera and many also wear the Panama hats.
The older women wear the huipiles, some of which are intricately embroidered. If you want the real thing, hand embroidered, you must visit a colectivo and look at the back to see that it is made by hand. Another popular item is the hamaca. They used to be made of hennequin (sisal in English), but today they are either made of polyester or cotton. Look for the cotton ones also found in the colectivos.