Training Course on the Production of ICT Statistics on Households and Businesses. PART A: Statistics on Businesses and on the ICT sector

Transcription

1 Training Course on the Production of ICT Statistics on Households and Businesses PART A: Statistics on Businesses and on the ICT sector MODULE B3: Designing an ICT business survey

2 After completing this module you will be able to: Design a survey on ICT use in business (sample design) Build a questionnaire using internationally agreed indicators Decide on interviewing method Define outcome indicators Objectives Contents Coverage, target population, statistical units Use of statistical frames Stratification criteria Sample size Sample selection methods B3.2. Model questions and questionnaires Questions for a module on ICT Questionnaires for stand-alone surveys 2

3 Coverage, target population and statistical units As with other business surveys, the scope and target population of the ICT use surveys are defined in terms of: Industry Business size Geographical location (sometimes) 3

4 Partnership industry scope for ICT business surveys The Partnership recommends: The minimum scope of: The OECD core industries (therefore excluding ISIC section J and division 92). In developing economies: The scope of ICT business surveys may deviate from the OECD recommendation to better suit country requirements. Partnership also encourages a broader scope, beyond OECD core and non-core industries. 4

5 Business size A common scope criterion for ICT use surveys is business size based on number of employees. Partnership recommends a minimum size scope of 10 or more employees for international comparability. Some developing economies may decide to include microenterprises (<10 employees) if they represent a large share of the in-scope population. 5

6 Geographical location The geographic scope of the business sector (and its parts) should in principle include the entire country. The geographic scope within a country should ideally include both urban and rural areas. 6

7 Statistical units The enterprise is the statistical unit most commonly adopted by countries that have implemented ICT surveys and is the unit recommended by the Partnership. The Manual recommends that countries adopt the SNA93 concept of enterprise: An institutional unit in its capacity as a producer of goods and services With some degree of autonomy in decision-making And consisting of one or more legal units involved in one or more activities at one or more locations Could be a corporation or an unincorporated enterprise. 7

8 Use of statistical frames Business registers should be improved through the coordination with other sources. General administrative registers: taxes, registrations, licenses, social security, etc. Specific registers: licenses for operating telecommunications businesses. Statistical databases: updated from economic censuses. 8

9 If no business register is available Population frames can be obtained from other sources: Lists of live units in economic censuses External directories Commercial telephone listings Industry association lists The frame should be checked in terms of coverage Comparison with external sources Adjusting of the estimates (reweighting) If the population frame lacks information on industry or size The survey should include questions to classify the respondent unit 9

10 SAMPLE DESIGN Sample selection should be made using probabilistic techniques This guarantees that the sample is truly representative of the population Only probabilistic (random) sampling allows calculation of estimates of the sampling error The design of a random sample should consider: The structure of the population of businesses (its stratification), The cost of collecting data and, The maximum acceptable statistical error associated with estimates. 10

11 Stratification criteria Optimal stratification for ICT use business surveys Basic stratification variables Industry and Size of business Additional stratification variable Geographical location of the business 11

12 Sample size Methods for deriving the sample size and design: Bottom-up procedure: Use of estimates of sampling error and auxiliary information Setting the required precision (CV) Eurostat recommendations Adjusting of total sample size Top-down Procedure: Calculation of the overall sample size Available budget and collection unit cost Allocation of the sample by strata 12

13 Sample Selection Methods Simple random sampling Random draw of n numbers between 1 and N Generation of random numbers Statistical software Random numbers tables Systematic sampling Procedure Arrangement of units from 1 to N Obtain: -Interval K=N/n - Starting point t (random number between 1 and K) Selection of units t+i*k (i=0,1,...,n) Pros: It may improve representativeness of the sample Cons: It produces biased estimates (unless the weighting factor is adjusted) 13

14 B3.2. Model questions and questionnaires Topics covered by Sub-module B3.2 Building a questionnaire using internationally agreed indicators Selecting topics to be included in the questionnaire Preparing topic-related questions Choosing appropriate wording Preparing answer patterns Deciding on interviewing method Defining outcome indicators 14

15 B3.2. Model questions and questionnaires Structure of a Module Section A: General information about use of ICT by the enterprise Use of computers by the enterprise and the persons employed Use of Local Area Network (LAN) Use of intranet and extranet Section B: How the enterprise uses the Internet in its operations Use of the Internet by the enterprise and its employees Mode of Internet access Web presence Activities carried out over the internet (e-commerce, information, e-banking, e-government, etc.) Section C: Other business information 15

16 B3.2. Model questions and questionnaires Suggested model questions Code Indicator Model question and response items B1 B2 B3 Proportion of businesses using computers Proportion of persons employed using computers Proportion of businesses using the Internet Did your business use computer(s) during <reference period> a? Yes/ No What percentage of persons employed in your business routinely used a computer at work during <reference period>? Percentage values (no decimals) from 0% to 100% Did your business use the Internet during <reference period>? Yes/ No B4 B5 Proportion of persons employed using the Internet Proportion of businesses with a web presence What percentage of persons employed in your business routinely used the Internet at work during <reference period>? Percentage values (no decimals) from 0% to 100% Did your business have a web presence as at <reference date>? Yes/ No B6 Proportion of businesses with an intranet Did your business have an intranet as at <reference date>? Yes/ No 16

17 B3.2. Model questions and questionnaires Suggested model questions (cont.) Code Indicator Model question and response items B7 B8 B9 B10 B11 Proportion of businesses receiving orders over the Internet Proportion of businesses placing orders over the Internet Proportion of businesses using the Internet by type of access (narrowband, fixed broadband and mobile broadband) Proportion of businesses with a local area network (LAN) Proportion of businesses with an extranet Did your business receive orders c for goods or services (that is, make sales) via the Internet during <reference period>? Yes/ No Did your business place orders c for goods or services (that is, make purchases) via the Internet during <reference period>? Yes/ No How did your business connect to the Internet during <reference period>? The list of response categories should allow the grouping into narrowband and broadband, and for the latter, into fixed and mobile. Yes/no or tick box for each response category Did your business have a local area network (LAN) as at <reference date>? Yes/ No Did your business have an extranet as at <reference date>? Yes/ No 17

18 B3.2. Model questions and questionnaires Suggested model questions (cont.) Code Indicator Model question and response items B12 Proportion of businesses using the Internet by type of activity For which of the following activities did your business use the Internet during <reference period>? Response categories: Sending or receiving Telephoning over the Internet/VoIP or using video conferencing Use of instant messaging, bulletin boards Getting information about goods or services Getting information from general government organizations Internet banking Accessing other financial services Interacting with general government organizations Providing customer services Delivering products online Internal or external recruitment Staff training Yes/no or tick box for each response category 18

19 B3.2. Model questions and questionnaires Structure of a Questionnaire Section A: General information about ICT use in business Use of computers by the business and its employees Use of mobile phones Use of Local Area Network (LAN) Use of Intranet and Extranet IT Security Section B: How the Business uses internet in its operations Use of internet by business and its employees Mode of internet access Web use Systems integration (for e-commerce) Activities carried out over the internet Barriers to using the internet Section C: Other information about the business Main activity Number of employed persons Value of turnover and fixed assets 19

20 Module B3: Designing an ICT business survey B3.2. Model questions and questionnaires Model questionnaires The OECD model questionnaire Suitable for a broad range of industries The questionnaire modules can be adapted to any specific sector, for example the financial sector Eurostat model questionnaires Cover more topics than the OECD model and Rotate topics between years. For instance, The 2007 model has a separate module on e-skills. The 2008 model asks more detail on e-business processes model questionnaire Covers core indicators Has 3 modules A General Information B How the business uses the Internet in its operations C Other information about the business 20