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INSIGHTS FROM THE ORIGINAL DATA
The detailed decomposition of each of these movements is included in the data cube 'Insights From the Original Data'.
In considering the three components of the sample, it is important to remember that the matched common sample describes the change observed for the same respondents in July and August, while the other two components reflect differences between the aggregate labour force status of different groups of people.
While the rotation groups are designed to be representative of the population, the outgoing and incoming rotation groups will almost always have somewhat different characteristics, as a result of the groups representing a sample of different households and people. The design of the survey, including the weighting and estimation processes, ensures that these differences are generally relatively minor and seeks to ensure that differences in characteristics of rotation groups do not affect the representativeness of the survey and its estimates. Monthly estimates are always designed to be representative of their respective months, regardless of the relative contribution of the three components of the sample.
INCOMING ROTATION GROUP
In original terms, the incoming rotation group in August 2019 had a higher employment to population ratio than the group it replaced (62.4% in August 2019, compared to 61.9% in July 2019), and higher than the sample as a whole (62.3%). The incoming rotation group had a lower full-time employment to population ratio than the group it replaced (41.2% in August 2019, compared to 42.3% in July 2019), and was lower than the sample as a whole (42.4%).
The unemployment rate of the incoming rotation group was higher than the group it replaced (5.9% in August 2019, compared to 5.5% in July 2019) and was higher than the sample as a whole (5.3%). The participation rate was higher than the group it replaced (66.3% in August 2019, compared to 65.5% in July 2019) and higher than the sample as a whole (65.8%).
OUTGOING ROTATION GROUP
In looking ahead to the September 2019 estimates, in original terms, the outgoing rotation group in August 2019, that will be replaced by a new incoming rotation group in September 2019, had a lower employment to population ratio (61.7% in August 2019) compared to the sample as a whole (62.3%). The full-time employment to population ratio (43.3%) has a higher ratio than the sample as a whole (42.4%).
The outgoing rotation group has the same unemployment rate in August 2019 (5.3%) compared to the sample as a whole (5.3%). The participation rate of the outgoing rotation group in August 2019 (65.2%) was lower than the sample as a whole (65.8%).
THE IMPORTANCE OF TREND DATA
As the gross flows and rotation group data are presented in original terms they are not directly comparable to the seasonally adjusted and trend data discussed elsewhere in the commentary, and are included to provide additional information for the original data. Since the original data are unadjusted, they have a considerable level of inherent sampling variability, which is specifically adjusted for in the trend series. The trend data provides the best measure of the underlying behaviour of the labour market and is the focus of the commentary in this publication.
ROTATION GROUP ANALYSIS FOR STATES AND TERRITORIES
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