Name of collection/source
Statistics Finland introduced the Consumer Survey in November 1987. The interviews begin on the first working day of each month, and they take approximately two to three weeks. Statistics Finland prints and publishes the results in Finland on the last working day of the survey month. Statistics Finland publishes the results within 2 weeks of the interviews.
The gross sample size of the Consumer Survey is 2,200 persons monthly. Systematic random sampling is used to extract the sample from the updated Central Population Register. Respondents represent the 15 to 74-year-old population in Finland, according to age, gender, province, and native language. Non-response is as high as 25 per cent.
All the results are weighted against the total population by means of sample weights, which are established by using the probability of each observation to be included in the sample. The individual weights are computed by CALMAR software, so that the estimated marginal distributions of certain background variables (region, person’s age group and gender) correspond to the marginal distributions in the whole population, i.e. the population structure.
The weights are formed as a ratio between the estimated frequencies in population cells and the known sample frequencies. Small or even zero cell frequencies are disregarded in this procedure. Thus, the method can be considered an “incomplete poststratification”.
Because some of the CS items measure household behaviour and sentiment, weights are also calculated for households. Benchmarking is made with reference to Statistics Finland’s income distribution statistics. The actual weights are obtained by post-stratification and finally by calibrating (region and number of household members in different age groups as background variables).
Aggregation and consolidation
All the results of the Consumer Survey are weighted against the total population by means of sample weights, the method can be considered an “incomplete post-stratification. In most Survey items consumers are presented with a choice of five alternative responses (++, +, =, -, --).The balance figure is calculated by weighting the percentage shares of the different responses by +1, +0,5, 0, -0,5 and -1.
|All Higher Levels|
Subject: Consumer opinion surveys
Main Economic Indicators