presentation - VirtualRDC @ Cornell - Cornell University
presentation - VirtualRDC @ Cornell - Cornell University
presentation - VirtualRDC @ Cornell - Cornell University
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Protection by Weighting<br />
■ QCEW 1,jt and B jt are not identical because<br />
✦ they do not refer to exactly the same point in time,<br />
✦ the in-scope establishments differ slightly, and<br />
✦ they are computed from different universe data.<br />
■ Actual differences captured by the QWI weighting scheme:<br />
time-series of adjustment weights are defined by<br />
∑<br />
w t b jt = ∑ QCEW 1,jt<br />
j<br />
■ All variables are weighted by w t<br />
j<br />
August 10, 2005 - p. 16/31