1. 1 Quarterly Investments Statistics How to compute final investments and analyzing estimated investments… Presentation at STESWP 2007 Lasse Sandberg, Statistics Norway

2. STESWP, 25-27 June 2007 Oil and Gas – driving force in the economy

3. STESWP, 25-27 June 2007 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

4. STESWP, 25-27 June 2007 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?

5. STESWP, 25-27 June 2007 Quarterly Investments Statistics – distribution of investments

6. STESWP, 25-27 June 2007 Distribution of investments – top 10 per cent

7. STESWP, 25-27 June 2007 Quarterly Investments Statistics – from sample to population Stratum 1The largest projects (in each publication level) Average investments in the ratio-period >= 99,5 percentile Stratum 2Large investments (in each publication level) Average investments in the ratio-period >= 95 percentile Stratum 3Medium-sized investments (in each publication level) Average investments in the ratio-period >= 90 percentile Stratum 4Small or no investments (in each publication level) Average investments in the ratio-period < 90 percentile

8. STESWP, 25-27 June 2007 Final Investments for Manufacturing

9. STESWP, 25-27 June 2007 Estimated Investments prior to final…