Vertical Integration :- It describes a style of management control. Vertically integrated companies in a supply chain are united through a common owner. Usually each member of the supply chain produces a different product or (market-specific) service, and the products combine to satisfy a common need. It is contrasted with horizontal integration.Vertical integration is one method of avoiding the hold-up problem. A monopoly produced through vertical integration is called a vertical monopoly, although it might be more appropriate to speak of this as some form of cartel.
Two types of vertical integration:-
Backward Vertical integration when it controls subsidiaries that produce some of the inputs used in the production of its products. For example, an automobile company may own a tire company, a glass company, and a metal company. Control of these three subsidiaries is intended to create a stable supply of inputs and ensure a consistent quality in their final product.
Forward Vertical integration when it controls distribution centers and retailers where its products are sold.
Horizontal Integration :- It describes a type of ownership and control. It is a strategy used by a business or corporation that seeks to sell a type of product in numerous markets. Horizontal integration in marketing is much more common than vertical integration is in production. Horizontal integration occurs when a firm is being taken over by, or merged with, another firm which is in the same industry and in the same stage of production as the merged firm, e.g. a car manufacturer merging with another car manufacturer. In this case both the companies are in the same stage of production and also in the same industry. This process is also known as a "buy out" or "take-over". The goal of Horizontal integration is to consolidate like companies and monopolize an industry.
Horizontal integration allows:
References: http://en.wikipedia.org/wiki/Vertical_integration http://en.wikipedia.org/wiki/Horizontal_integration http://www.freemba.in/articlesread.php?artcode=182&substcode=12&stcode=8