st: re: What to do about multiple observations for one

[Kit Baum <baum@bc.edu>]

<>	
Nick, Kit, Martin... thanks a lot for your suggestions. The only one  
that had occurred to me was the one that averages spreads (yes, Kit, I  
have yield spreads, not prices) and other variables by country  
whenever there are multiple bonds issued in a given time period... I  
was not a fan of this approach because I would "lose" observations...  
but then again, I don't know exactly how much I'm actually losing, if  
all my macro variables for each of those "repeated" observations in  
one same time period have the same value (different spread for each  
bond... but same GDP growth, debt/GDP, inflation, etc.).

What you lose by preserving the multiple observations per time period  
is the ability to apply the battery of panel data econometrics to your  
problem. You can certainly make use of additional issue-specific  
information, collapsed to the country-year (for instance you could  
look at medians rather than means).
Kit

Kit Baum   |   Boston College Economics & DIW Berlin   |   http://ideas.repec.org/e/pba1.html
                              An Introduction to Stata Programming   
|   http://www.stata-press.com/books/isp.html
   An Introduction to Modern Econometrics Using Stata  |   http://www.stata-press.com/books/imeus.html



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