Answer :
The three different types of corporate combinations are the following: Horizontal, vertical and conglomerate. When it involves companies that are in the same phase of production, this type of combination is called the horizontal combination. Whereas, the vertical combination serves as the merger between companies that involved different phases of production of a product. Lastly, conglomerate combinations deal with merging companies producing unrelated products.
Small businesses conduct mergers and acquisitions for the same reasons large corporations do -- to strengthen positions in one or more markets, gain access to new markets, increase efficiency or just diversify a company's offerings. Three main types of mergers are of particular interest to small businesses, and each has something going for it.A discussion about mergers should note that, strictly speaking, true mergers are rare. A merger occurs when two companies come together as equals and form an entirely new company. Most business combinations billed as "mergers" are really acquisitions: One company is buying the other and absorbing its operations. The distinction is mostly technical, though. If you own a business and take over a competitor, for example, calling the deal a merger shows deference to and respect for the other company's employees and former owners.Horizontal mergers involve companies that offer the same products or services to the same kinds of customers. If your business mows lawns, for example, and you combine with another lawn-care company in your town, that's a horizontal merger. Horizontal mergers offer "economies of scale," meaning that average costs decline as the company does a greater volume of business. Such mergers also increase market share. And they offer opportunities for cost savings by eliminating redundancies: Where the original companies each needed their own purchasing department, advertising budget, benefits program and so on, the merged firm only requires one.A vertical merger combines two companies that are involved in producing the same goods or services but at different stages of production. Say you own a manufacturing company that makes items out of plastic. Merging with a company that makes raw plastics would be a vertical merger. Vertical mergers help prevent business disruptions: The manufacturing operation no longer has to worry about obtaining enough plastic, while the plastics operation gets a steady customer. Cost savings through eliminating redundant functions are also possible.Concentric MergersConcentric mergers, also called congeneric mergers, occur between companies within an industry that serve the same customers but don't offer them the same products or services. If you owned a catering company, for example, and you merged with a business that rents tables, chairs, event tents and party equipment, that would be a concentric merger. Both companies appeal to customers who have events to plan, but not in the same way. Concentric mergers diversify the combined company's offerings and allow the firm to benefit from areas of shared expertise. These mergers can also drive new business, because the firm becomes more of a "one-stop shop" offering more of the services that both companies' customers are typically looking for.