The Appropriate Time Average of {Y_it} Is​ , Where

question 6

Multiple Choice

The appropriate time average of {y_it} is​ , where T_i is:

• A)​the dummy variable, which equals one when a complete set of data is observed.
• B)the total number of time periods for cross-sectional observation i.​
• C)​the total number of complete time periods for cross-sectional observation i.
• D)​the explanatory variable for cross-sectional observation i.

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