All of the following are good reasons for an applied econometrician to learn some econometric theory, with the exception of
A) turning your statistical software from a "black box" into a flexible toolkit from which you are able to select the right tool for a given job.
B) understanding econometric theory lets you appreciate why these tools work and what assumptions are required for each tool to work properly.
C) learning how to invert a 4×4 matrix by hand.
D) helping you recognize when a tool will not work well in an application and when it is time for you to look for a different econometric approach.
Answer: C
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