Examlex
__________, a part of the Kushite civilization, became Africa's first industrial center, exploiting nearby resources of iron.
Perfect Knowledge
A hypothetical situation in economics where all consumers and producers have complete and instantaneous knowledge of all market prices, conditions, and trends.
Perfect Mobility
A theoretical condition where factors of production, such as labor and capital, can be freely moved from one use to another without costs or barriers.
Marginal Revenue
The revenue increment achieved by selling an extra unit of a product or service.
Marginal Cost
The expense associated with manufacturing an additional unit of a product or service.
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