Friday, January 27, 2017

Graph of the Day

2 comments:

  1. Why don't you do seasonal adjustment for permit trend?

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    Replies
    1. A couple of reasons. 1) Permits tend not to be very seasonal. Since permits lag construction, they tend not to be (significantly) affected by the weather. 2) Typically they are not reported seasonally adjusted. Seasonally adjusting the series - when there would be little affect - might be confusing.

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