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Statistical processing

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Business Development, Business Statistics
Mahtab Keshavarz
+45 39 17 31 15

mke@dst.dk

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Computer Services

Data are collected by web from 1052 enterprises for the sector Computer services. In the questionnaire the enterprises are asked to breakdown their turnover by a number of products, services and client categories. It also reported information about export. The reported data are checked by comparing the distribution of turnover among enterprises that are similar. Survey data is grossed up in part by including information from administrative sources on the VAT turnover in the reference year for the entire population.

Source data

The statistics is based on a sample of enterprises in the sector for Computer Services. The enterprises are selected based on their number of full-time employees. The number of full-time employees is calculated based on the average for full-time employees in each of the four quarters of the year.

The sample is stratified random sample consisting of all enterprises with 20 employees or more and a part of enterprises with 5-19 employees. Enterprises with under 5 full-time employees are not included in the sample due to response burden. The sample is divided into 5 size groups: 5-9, 10-19, 20-49, 50-100 and more than 100 full-time employees. Each year a new sample is drawn and the FRAME consists of enterprises in the Business Register System, which are active in the drawing time.

Frequency of data collection

Data are collected annually.

Data collection

Data are collected by online questionnaires. In the questionnaire the enterprises are asked to distribute their turnover and export in DK 1,000 by a number of products, services and client categories.

The reporting is mandatory, i.e. the enterprises are required to report accurate data on time. If the data has not been received , the companies will be reminded 3 times by mail or telephone. After that a registered letter will be sent to inform the enterprises that if the information are not submitted within one week, Statistics Denmark can refer the matter to the police for requesting the imposition of a fine.

Data validation

The submitted data are checked for errors, ex. data of the individual reporter are compared with prior periods and similar enterprises reporting in the current period. If the data are significantly different than expected, the enterprise will be contacted. It must be assumed that not all errors in the data are found. That is why the statistics may be subject to some uncertainty associated with error reporting.

Data compilation

The data from the questionnaires received are grossed up to the provisional total turnover from Business Register.

The data are corrected for bias in the sample and response pattern. A so-called ratio estimate is used, which includes information on the taxable turnover of the year concerned for the entire population of the sector for Computer Services.

Adjustment

Not relevant for these statistics.