Intermediate goods, producer goods or semi-finished products are goods, such as partly finished goods, used as inputs in the production of other goods including final goods. A firm may make and then use intermediate goods, or make and then sell, or buy then use them. In the production process, intermediate goods either become part of the final product, or are changed beyond recognition in the process. This means intermediate goods are resold among industries. Intermediate goods are not counted in a country's GDP, as that would mean double counting, as the final product only should be counted, and the value of the intermediate good is included in the value of the final good. The value-added method can be used to calculate the amount of intermediate goods incorporated into GDP. This approach counts every phase of processing included in production of final goods. Characterization of intermediate goods as physical goods can be misleading, since, in advanced economies, about half of the value of intermediate inputs consist of services. Intermediate goods generally can be made and used in three different ways. First, a company can make and use its own intermediate goods. Second, a company can manufacture intermediate goods and sell them to others. Third, a company can buy intermediate goods to produce either secondary intermediate goods or final goods.

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