Numerous court decisions stated that if the full-service store and the manufacturer agreed not to sell the product to discounters, then this constitutes a group boycott in violation of antitrust law. However, if the manufacturer unilaterally stopped selling to discounters, even after hearing full-service retailers' complaints, then this action does not violate antitrust law.
Forgetting the real world is never a good omen. It always come to mind. It is therefore urgent to reconnect with it. It is even what we should first teach to children: Commodity consumption should no longer be the ultimate goal of our societies, and all work should be an art of creation. We are far from it.