[solved] The "driving forces" in an industry
are usually triggered by changing technology, the entry of important new competitors, or the exit of several important industry members.
are usually triggered by shifting buyer needs and expectations or by the appearance of new substitute products.
usually are spawned by growing demand for the product, the outbreak of price-cutting, and unexpectedly large reductions in entry barriers.
become more numerous and grow in intensity when the industry begins to mature and the rate of growth in buyer demand slows.
are the major underlying causes of changing industry and competitive conditions and have the biggest influence on how the industry landscape will be altered.