Reasonable amount of competition is good.

Competition that spurs innovation is good, more like, but I am skeptical of the claim that competition is necessary to prompt innovation, and whether the costs of such a model (leading to massive waste of society's productive capacity) are worth the purported benefits. For instance, a good deal of mathematics and science was not done on the principle of competition, but search for improvement. The real question is whether the development in goods and services can be or could have used similar principles, which is not only more efficient but seems condusive to better mental well-being; I'd rather desire to improve than to slight (and possibly sabotage) someone who must be my opponent.

Good for the consumer.