Commercial confusion means that operators engage in market transactions by deceptive means to confuse their own goods or services with those of specific competitors, resulting in unfair competition that may be sufficient to make buyers mistakenly buy.
A Baiwei beer sold by a brewer that is very similar to the outer packaging of the well-known brand Budweiser, but with a price that is only half that of Budweiser, is a commercial confusion according to the above definition.