There are at least two firms producing a homogeneous (undifferentiated) product and can not cooperate in any way.

Production cost per unit are low on account of having one production run for homogeneous product.

Perfect competition describes a market structure such that no participants are large enough to have the market power to set the price of a homogeneous product.

Not only do homogeneous products make agreement on prices and/or quantities easier to negotiate, but also they facilitate monitoring.

Perfect competition, in which the market consists of a very large number of firms producing a homogeneous product.

Most market forms given below talk about a homogeneous product.

Perfect competition: there are many firms making a homogeneous product.

"As a result, we've got this homogeneous product."

If one cannot, then one must think in terms of cost efficiency to compete with homogeneous products, whatever one's current differentiated position.

But he didn't: Anderson was writing about firms selling homogeneous and undifferentiated products, not songs or movies.