When every economic unit achieves its own particular goal, perhaps by delivering something of value to others, it is referred to as ___self-interest___.
Self-interest is an action motivated to achieve personal goals or advantages. According to Adam Smith, when individuals pursue their self-interests, they satisfy the general public by providing some goods or services in exchange.
Thus, when individuals or every economic unit achieves its self-directed goals, they usually satisfy their self-interest while delivering something of value to others.
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