Quarterly Investments Statistics

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Quarterly Investments Statistics

• How to compute final investments and analyzing
  estimated investments
• Presentation at STESWP 2007
• Lasse Sandberg, Statistics Norway

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Oil and Gas driving force in the economy
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Quarterly Investments Statistics - sampling

• Two surveys
• Population
• Manufacturing, mining and electricity supply
  (NACE 10, 13-14, 15-37, 40)
• Oil and Gas Activity (NACE 11, 60.3)
• Sampling
• Manufacturing etc Cut-off PPS, 1 900
  Establishments
• Oil and Gas Total, 220 Enterprises
• Data collection
• Questionnaires

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Quarterly Investments Statistics from sample to
population

• Estimation
• From sample to population level
• Stratum 1 high level investments. All projects
  in the stratum must be covered in the sample of
  the investment statistics. Estimated by
  aggregating the sample values.
• Stratum 2-4 medium and small level investments,
  grossed up by ratio estimator
• Why separate treatment of high level investments
  when grossing up and how to define level of
  investment?

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Quarterly Investments Statistics distribution
of investments
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Distribution of investments top 10 per cent
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Quarterly Investments Statistics from sample to
population
Stratum 1 The largest projects (in each publication level) Average investments in the ratio-period gt 99,5 percentile
Stratum 2 Large investments (in each publication level) Average investments in the ratio-period gt 95 percentile
Stratum 3 Medium-sized investments (in each publication level) Average investments in the ratio-period gt 90 percentile
Stratum 4 Small or no investments (in each publication level) Average investments in the ratio-period lt 90 percentile
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Final Investments for Manufacturing
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Estimated Investments prior to final