The correct answer to this open question is the following.
The principles of individual decision making reflect “thinking like an economist” in that they require a methodical thinking to respect the process of decision making.
When we refer to “thinking like an economist,” what we mean is that we have to evaluate the facts to make the better decision, taking into consideration all the variables that are offered. The economist has to calculate all the possibilities in order to make the best decision.
That is why the principles of individual decision making invite us to do. To follow the process step by step so we can be in a position to contemplate all the options and the variables in order to make the best decision possible.