Pitkin J R
Appl Demor. 1992 Spring;7(1):5-8.
"This study compares the 1990 [U.S.] population estimates of four national demographic data vendors with the actual counts of the 1990 Census. It was performed for a consortium of three public utility companies [in California].... In addition to total population, this study evaluates the estimates of three other demographic variables...: number of households, population of Spanish origin and white population.... Differences in accuracy are found among the vendors and between variables.... On average, the estimates were most accurate for total population, considerably less so for race (white population) and households and by far the least accurate for Hispanic population."
本研究将四家全国性人口统计数据供应商对1990年[美国]人口的估计与1990年人口普查的实际计数进行了比较。该研究是为[加利福尼亚州]的三家公用事业公司组成的财团进行的……除总人口外，本研究还评估了其他三个人口变量的估计值……：家庭数量、西班牙裔人口和白人人口……各供应商之间以及各变量之间在准确性上存在差异……总体而言，对总人口的估计最为准确，对种族（白人人口）和家庭数量的估计准确性要低得多，而对西班牙裔人口的估计准确性则是最低的。
