At Ford, for example, automotive components, vehicles, and assembly services are bought and sold internally across divisions. The intellectual property patents of many pharmaceutical companies, such as Merck, are usually held by foreign subsidiaries, making the transfer price to these subsidiaries a critical factor in how much income is recognized in various tax jurisdictions.
Firms use transfer prices (1) to focus managers’ attention on the performance of their own subunits and (2) to plan and coordinate the actions of different subunits to maximize the company’s income as a whole. Transfer prices can lead to disagreements, however, because managers of different subunits often have very different preferences about how transfer prices should be set. For example, some managers prefer the prices be based on market prices. Others prefer the prices be based on costs alone. Controversies also arise when multinational corporations seek to reduce their overall income tax burden by charging high transfer prices to units located in countries with high tax rates. Many jurisdictions, including the European Union, attempt to restrict this practice, as the following article shows.

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