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Confidentiality Protection in the Census Bureau’s Quarterly Workforce Indicators John M. Abowd 1,2 , Bryce E. Stephens 2,3 , and Lars Vilhuber 1 1 Cornell University, 2 U.S. Census Bureau, 3 University of Maryland August 10, 2005 - p. 1/31
Introduction ■ We will describe the confidentiality protection mechanism as applied to a new statistical product: the Quarterly Workforce Indicators (QWI). ■ The underlying data infrastructure was designed by the Longitudinal Employer-Household Dynamics Program at the Census Bureau and is described in detail in Abowd et al (2005). ■ From a longitudinally integrated frame of state unemployment insurance wage records, we create measures of employment, wages, hiring, separation, job creation and job destruction. August 10, 2005 - p. 2/31
Page 1: GoBack
Page 5 and 6: Protection provided ■ In general,
Page 7 and 8: Three-layer confidentiality protect
Page 9 and 10: Three-layer confidentiality protect
Page 11 and 12: Distribution of Fuzz Factors 0 0 2
Page 13 and 14: Distorting ratios Ratios are distor
Page 15 and 16: Item suppression ■ Some disclosur
Page 17 and 18: Protection by Weighting ■ QCEW 1,
Page 19 and 20: Protection Table 1: Small Cells: B,
Page 21 and 22: Protection Table 3: Small Cells: B,
Page 23 and 24: Distribution of the Error in the Fi
Page 29 and 30: Cross-sectional unbiasedness: B Fra
Page 31 and 32: Conclusion ■ First large-scale im

presentation - VirtualRDC @ Cornell - Cornell University

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