Pen, its more professional
This can really be answered by others. This question is asked direcly to YOU. If you are unsure of the identification portion, it helps to google the terms, and based off what you looked up, you should be able to determine if your response fits in with any of these. Best of lock to you!
The answer for the blank spaces is:
1) Can be Unreliable
2) The living standards include many factors and scenarios, it is quite possible that some or many of them do not qualify to be part of real GDP.
Real Gross Domestic Product (real GDP) is a macroeconomic measure of the estimation of financial output balanced for value changes.This alteration changes the cash value measure, nominal Gross domestic product, into an index for quantity of aggregate output.