A complementary good or service is something used or provided in combination with another good or service. The word complementary means combining to enhance or emphasize each other's qualities.

Integrative medicine (IM) is an approach that combines conventional medicine with complementary treatments. The aim of IM is to treat the whole person, not just a health problem. Because IM is ...

Discover how economies of scope reduce costs by producing diverse goods together, yielding advantages over separate ...