| A | B |
| resource | An item used to produce a product or service. |
| capital | Things used in production that are man-made. |
| equilibrium | Where suppy and demand curves intersect. |
| marginal cost | Additional cost of each unit of input. |
| law of demand | When price is lowered, more of the product is purchased. |
| complementary enterprise | One enterprise provides inputs for another. |
| land | Everything in nature used for production. |
| competitive enterprise | One enterprise interferes with another. |
| law of supply | When price is lowered, less of the product is supplied. |
| supplementary enterprise | Two enterprises are independent, but one provides income to the other. |