complementary good

From a parental perspective, good daycare can complement good parenting.

Smart shops sell many products that can be seen as complement goods to psychoactive drugs, including illegal ones.

In the case of video games, a specific video game (the complement good) has to be consumed with a video game console (the base good).

Good Morning [Region] - used by local ABC affiliates to complement Good Morning America.

However, the extent to which technology producers can shift from more expensive to cheaper inputs, or modify technology toward the use of cheaper complement goods is bound by technical constraints.

Common sense complements good sense and allows it to function; 'recognition' of the object enables 'prediction' and the cancelation of danger (along with other possibilities of difference).

For an example with a complement good, if, in response to a 10% increase in the price of fuel, the quantity of new cars demanded decreased by 20%, the cross elasticity of demand would be -2.0.

The study of collective action shows that public goods are still produced when one individual benefits more from the public good than it costs him to produce it; examples include benefits from individual use, intrinsic motivation to produce, and business models based on selling complement goods.