The commercial concerns come primarily from the smaller end farmers such as the organic farmers, and hometown farmers which will be undoubtedly beaten down in sales and requests by the booming GM market. The GM market will bring with it very fancy publicity and advertisement giants which will push the sales even further, leaving the home-grown farmers behind.
The social concerns relate to the way in which GM crops will integrate as staple foods for consumption and how will their effect on the market affect local producers to the point of not bringing them to financial ruin. If this happened, jobs could be endangered in several aspects.
Europe, however, has begun speaking against GM crops because of the reverse effect of some crops on monarch caterpillars. Along with this, they wonder if the GM modification will also create new allergens for humans. Not alone, they do worry about the crops that are naturally grown in the normal market in terms of the economy of third world countries already in dire straights.
For this, the benefits of GM are the production of good food, more sales, fast food growing, more exposure to healthy products. The risks are the effect on pollination in animals, the creation of new allergens, and the lack of commerce for low-end farmers. Enclosed in this response is a link with information on the recent European issues with GM markets.
The commercial market for GM crops is anyone who buys food. GM holds the hope of growing more food with less chemicals, for example. This could make food cheaper and healthier.
The main social impact would be on smaller farmers, especially in the Third World. They could be impacted if the GM seeds are only available to farmers in richer countries. This would help the rich country farmers outcompete the poorer ones even more than they already do.
In richer countries, the concerns about GM crops are more environmental and health-related rather than social.