He pointed out: "some integration will appear, including acquisitions, as part of a marginalindustry will not be able to find investors to support their business plan."
Figure 5.11 illustrates the same point for the case in which external economies affecting marginal cost curves are sufficiently important to yield a negatively sloping supply curve to the industry.
Marginal contribution analytical method commonly used in intermittent industry can also be used for economic analysis of production and operation of solid products in petrochemical industry.