Dear Elaine, Thank you very much for the information. Now we expect better quality of the migration statistics from the 2008 ACS survey estimates and the Census 2010 census counts. ________________________________ Richard Lin, Ph.D. Demographer Colorado Department of Local Affairs Division of Local Government 1313 Sherman Street, Room 521 Denver, CO 80203 Phone: (303)866-4989 Fax:: (303)866-2660 richard.lin(a)state.co.us www.DOLA.Colorado.Gov At the recent ACS Peer Exchange, sponsored by the FHWA/FTA Transportation Planning Capacity Building program, held May 10-11, 2007; Nancy Torrieri shared a paper copy of some of the question changes for the 2008 ACS content. I just noticed that Question 14 "Did this person live in this house or apartment 1 year ago?" has a NEW line for STREET ADDRESS, in addition to city/town; county; State; and zipcode. If respondents complete this line, then, coding to a "real" PUMA, not just to county should be possible. Elaine Murakami FHWA Office of Planning -----Original Message----- From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of mbousfield(a)cityofchicago.org Sent: Friday, June 08, 2007 8:52 AM To: Ed Christopher; Murakami, Elaine Cc: ctpp-news maillist; douglas.w.hillmer(a)census.gov Subject: RE: [CTPP] Brainstorming about INCOME variable for thefutureCTPP(using ACS records) To CTPP-News Maillist and Other Census Groupies, Much thanks to all who shared their migpuma concerns. The attached file defines the migpumas and the powpumas in function of the pumas (all 5%). I downloaded it from Blodgett's Mable database. For instance, for Illinois (17), the pumas 3501-3519 cover the City of Chicago and pumas 3401-3414 cover the remainder of Cook County which we call suburban Cook County. The file shows that powpuma 3500 coincides with the city of Chicago and that migpuma 3490 coincides with Cook County. We at the City defined the pumas but the definitions of the powpumas and migpumas were done by the CB. In 1990, Chicago was a migpuma but in 2000 the CB decided it was no longer. According to Clara, no county remainders were migpumas except Los Angeles city, why not Chicago city? I planned to extract the population sizes off all the migpumas and show that there are many migpumas that are smaller than the City of Chicago thereby showing a lack of equal access to data. According to "Principles and Practices for Federal Statistical Agencies" by Martin, Straf, and Citro, federal statistical agencies have to ensure equal access to data. Are large subcounty cities with concentrations of minority persons getting equal access to data? Thank you, Marie Bousfield, Demographer City of Chicago Department of Planning and Development City Hall, Room 1003 121 North LaSalle Street Chicago, Illinois 60602 Tel. (312) 744-6536 Fax. (312) 744-0759 Email mbousfield(a)cityofchicago.org http://www.cityofchicago.org _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news