The study examines the practical mechanism of Schumpeterian 'creative destruction' in the info-communication sector. The concept of innovation is understood here in a broad sense, as Schumpeter himself would have done. The study shows how the innovation model devised by Clayton Christensen and his associates presents a subtle picture of the market process of innovation, with which completed and current innovation processes with several outcomes can be analysed easily. The examination centres on the question of when the collapse of markets and structural transformation of market-supply competition is likely to occur as part of the 'creative destruction' process. The examples presented include both successful and unsuccessful cases in this respect.