Final answer:
Macroeconomics employs representative agents, which are hypothetical individuals or groups that share the same economic characteristics and behaviors.
Step-by-step explanation:
Macroeconomics employs representative agents, which are hypothetical individuals or groups that share the same economic characteristics and behaviors. These agents are a simplified representation of the diverse individuals and firms in an economy. By using representative agents, macroeconomists can analyze and model the economic behavior of the entire economy.