When technologies converge

Two products converge in substitutes when users consider the products to be interchangeable. This happens when a product develops features increasingly similar those of other products. It also occurs when users put together common components to perform functions already performed by existing products. Two products converge in complements when they increasingly work together better than they worked alone. This occurs when different firms develop products or subsystems within a product that forms a larger system. The system´s output can potentially exceed output from the sum of the parts. The article examines the technology convergence issue by looking at examples to do with the Internet, worldwide communications and broadcasting systems