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@charlie

No, the ACS isn't all "imagined," but it is a sample survey. The MOEs for race at the citywide level are quite low, but the MOEs at the tract level are pretty high.

The data will also get better as time goes on. The ACS sampling process is informed by decennial census data, so with new data in 2010, the ACS will get a nice adjustment.

The one-year ACS data is also a nice snapshot, but the problem is that such a sample doesn't give you data for small geographies. The five-year sample does give you that small area data, but at the cost of the longer timeframe.

by Alex B. on Dec 15, 2010 12:35 pm • link • report

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