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PWMET13ERR
Coverage error in PWMET13 variable

Description

PWMET13ERR reports, for each metropolitan area identified by PWMET13, the level of spatial mismatch error between the identified area and the actual 2013 metropolitan statistical area (MSA).

The code assignment protocol of PWMET13 yields errors of omission (workers in a metro area who are not identified as workers there) and errors of commission (respondents identified as working in a metro area who worked elsewhere).

As an index of mismatch, IPUMS uses the sum of percent population omission error (the portion of an MSA's population residing in excluded Place-of-Work PUMAs) and percent population commission error (the portion of the population in associated Place-of-Work PUMAs that did not reside in the MSA).

For each reported PWMET13 code, PWMET13ERR identifies the level of the sum of errors.

PWMET13 reports no code for MSAs where the sum of match errors is 15% or more. Researchers may use PWMET13ERR to impose a more restrictive error limit if desired.

To compute match errors, IPUMS uses 2010 populations for all ACS and PRCS samples. For samples that use 2000 Place-of-Work PUMA definitions (2000 samples and ACS and PRCS samples through 2011), IPUMS estimates the populations of the areas of intersection between 2000 Place-of-Work PUMAs and 2013 MSAs by summing the populations of census blocks that had their geographic center in each area.

The actual omission and commission errors for workers of a metropolitan area may differ substantially from the errors based on residents. IPUMS uses resident counts to compute mismatches because worker counts are not available for small areas, as needed to compute counts for all intersections between Place-of-Work PUMAs and MSAs.

For more detailed information about relationships between Place-of-Work PUMAs and MSAs, IPUMS provides these tables (in Excel spreadsheets):

2000 5% sample:

2005-2011 ACS and PRCS samples:

2012 and later ACS and PRCS samples:

  • 2010 Place-of-Work PUMAs are identical to 2010 Migration PUMAs, so these reference files pertain to both PWMET13 and MIGMET131 for 2012 and later samples

Codes and Frequencies



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Comparability

This variable is completely comparable across samples.

Universe

  • 2000: Persons age 16+ who worked last week.
  • ACS, PRCS: Persons age 16+ who worked last week.

Availability

United States
  • 2017: All samples
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: ACS; ACS 3yr; ACS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2004: --
  • 2003: --
  • 2002: --
  • 2001: --
  • 2000: 5%; 1% unwt
  • 1990: --
  • 1980: --
  • 1970: --
  • 1960: --
  • 1950: --
  • 1940: --
  • 1930: --
  • 1920: --
  • 1910: --
  • 1900: --
  • 1880: --
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2017: All samples
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: PRCS; PRCS 3yr; PRCS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2000: PR 5%
  • 1990: --
  • 1980: --
  • 1970: --
  • 1930: --
  • 1920: --
  • 1910: --

Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.