Answer:
System 1 uses heuristics, while system 2 is more calculating; most decisions are made by system 1.
Step-by-step explanation:
Behavioral economists stated that the human brain is very efficient but it is usually susceptible or prone to errors. They believed that the human brain uses evolutionary-developed heuristics to make most decisions. The human brain often uses and employs heuristics as they save energy and time in decision making.
Heuristics
This is often refered to as short passway or shortcuts that save time and energy in decision making.
Module
This is simply known as particular organ or subsystem of the brain which is said to be genetically specified to perform a some special functions.
Modular brain function
This is known as a separate or different localized regions of the brain that are mostly specialized to perform specific functions.