Supplier convergence does not reduce the number of products or services available, but merely the number of companies offering them. Another type of convergence is known as complementor convergence. This takes place when two or more companies become allies or form strategic partnerships in order to drive out other competitors. This is not supplier convergence because they are not merging and forming a united line of products, but simply complementing each other with a business partnership (Slywotzky et al. 1999).