The Horizontal exchange is an e-marketplace that facilitates transactions for goods and services across several industries. A horizontal e-marketplace connects buyers and sellers across different industries or regions. A horizontal e-marketplace can be used to purchase indirect products such as office equipment or stationery.  Horizontal exchanges focus on leveraging expertise in a particular business process across number of industries. Service industries lend themselves well to a horizontal exchange. The most active horizontal exchanges today are competing in the realm of e-procurement.

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