Switzerland

Source of the series

Accident declarations registered by the Accident Insurance Central Statistical Service (Service de centralisation des statistiques de l’assurance-accidents - SSAA).

Title of the series

Swiss Wages Index.

Normal hours of work in enterprises.

Organization responsible

Data collection:

Accident Insurance Central Statistical Service.

Statistical processing, publication/dissemination of the statistics:

Federal Office of Statistics (Office fédéral de la statistique - OFS).

Main topics covered

Wage rates and normal hours of work.

Periodicity or frequency of availability of the statistics

Annual.

Reference period

The calendar year.

Coverage of the statistics

Geographical:

the whole country.

Industrial:

all branches of economic activity, including horticulture and forestry, but not including agriculture, hunting and related services, and fishing.

Establishments:

establishments and enterprises of all types and sizes.

Persons:

full-time employees, excluding middle and senior management.

The reference population corresponds to the "interior concept" of the labour market: persons exercising an activity in a unit of production established in the territory of Switzerland, whether domiciled in Switzerland or abroad (e.g. cross-border workers).

Occupations:

data are not collected on individual occupations or groups of occupations, but on levels of qualifications (see under "classifications").

Concepts and definitions

Employment:

the statistics cover full-time employees, accident victims, and come from the Swiss National Accident Insurance Fund (Caisse nationale suisse d’assurance-accidents -Suva, ex-CNA), or private insurers.

Part-time employees, those affected by reductions in hours of work and middle and senior management are not in principle covered by the statistics.

Wage rates:

refer to rates actually paid. The definition used to calculate the index includes the following elements: gross basic wage, inflation increases and the thirteenth month allowance. Bonuses and commissions, family allowances, special bonuses and benefits in kind are recorded but left out of the calculation. When the wages exceed the maximum insured amount (CHF 8,900 per month at 1 January 2000) only the maximum is taken into account (see also under "Adjustments"). Data are collected separately for full-time and part-time workers, apprentices and by sex.

Hours of work:

normal weekly hours of work in enterprises, valid for a period of several months or years. In principle, it is the individual hours of work of full-time employees, ignoring overtime, short-time and other absences. They may be fixed by law or regulations, collective agreements or the internal rules of enterprises/establishments, as set out in the employees' contract of employment.

Data are collected separately for full-time and part-time workers, apprentices and by sex.

Classifications

Branch of economic activity (industry):

Title of the classification:

General Nomenclature of Economic Activities, 1995 (Nomenclature générale des activités économiques - NOGA), since 1991.

Number of groups used for coding:

at Swiss national level, the statistics are broken down by economic class (two digits) and division (one digit); at cantonal level, by economic division.

Applied to:

normal hours of work and wage indices.

Link to ISIC and level:

NOGA is based on NACE, Rev. 1 and is compatible with ISIC, Rev.3.

Other classifications:

Wages:

level of qualifications (skilled, semiskilled and unskilled workers); sex; area of activity (production, office and technical (together) and sales); sector (primary: horticulture and forestry; secondary and tertiary); and classifications broken down by canton and region.

Hours of work:

by canton and region, and classifications broken down by canton/economic section.

Data collection

Size and coverage of the administrative system:

the Accident Insurance Central Statistical Service (SSAA) receives over 300,000 accident statements per year.

Data collection method:

the accident statements are forms completed by the victims or their employer which, among the some twenty variables (economic branch, sex, qualifications, area of activity, method of remuneration, working days, age, home address and place of work of the accident victim, type of accident, etc.) include information on the wages of the accident victim and the normal hours of work in the employing company. These forms are sent to the OFS via the SSAA in electronic form and anonymously.

In the statistics on wage trends, the main variables for the selection of data are: level of qualifications, hours of work (full-time employees), age (men: 19-65 years; women: 19-63 years) and the area of activity.

Updating of the administrative system:

continuous.

Data processing, editing and consistency checks

The SSAA inputs the computerized data and carries out consistency checks of information gathered based on accident statements.

The OFS extrapolates the results.

Normal hours of work, at section level, economic sector or overall, are calculated using a weighted model, based on the Federal census of enterprises of 1995 and 1998. Each economic division in each canton receives a weighting coefficient. This process allows aggregate values to be calculated in the light of the employment patterns peculiar to each canton and region.

The following data are used to calculate the current weightings for wage statistics: full-time jobs derived from the 1991 census of enterprises; the number of active full-time employees taken from the 1990 population census; production personnel from the October 1991 survey of wages and earnings; and SSAA data for 1991 on employees broken down by type of accident.

Accident statements from certain groups of employees are not proportional in number to the size of these groups on the survey population (e.g. construction and civil engineering). Groups of workers are therefore weighted to avoid distortions in the presentation of the macro-economic trends in wages.

Adjustments

Under-coverage:

statistics on wage trends: for certain groups of employees, e.g. skilled men in the economic categories "chemicals", "banking" and "public administration", the unknown amounts of wages which exceed the maximum insured always constitute a considerable proportion, ranging from 5% to 15% of the total wages indicated for these groups. In this case, the declared wages are corrected or extrapolated. The method of correction or extrapolation relies on the assumption that in reality wages are broken down according to a normal log distribution.

Types of estimates

Average annual normal weekly hours of work, weighted by the number of jobs;

Annual nominal and real indices of wage trends.

The average hours of work are the average of all weeks in a calendar year.

The annual wage indices are calculated from accident statements which cover the whole year.

In order to solve the problem of the influence of variations in hours of work on hourly wages, the hourly wage is linked to the individual weekly hours of work of each insured employee and converted to monthly earnings.

Construction of indices

The trend in normal wages is calculated using a Laspeyres index on a constant base (number of employees in homogeneous groups in the base year) which measures variations in wages for a constant type of work (pure wage trend). No account is taken of wage variations resulting from an increase in the proportion of skilled persons or relocation of workers to economic sectors which, on average, pay higher wages. The index is currently constructed on base year 1993 = 100.

The trend in real wages is measured by deflating the nominal wages index by the consumer price index.

Indicators of reliability of the estimates

Coverage of the administrative system:

exhaustive. All employees must be covered by accident insurance.

Non-sampling errors:

normal time and wages: the weighting system must always be adjusted for the results of the most recent censuses of enterprises, so that it is not possible to analyse very long term trends.

Wages trends: a weakness of the statistics is that they exclude part-time employees, and middle and senior management (who are covered in the accident statements, but not included in the statistical calculations).

Conformity with other sources:

normal hours of work: the results of the statistics are compared with other indicators of hours of work, such as the volume of work statistics: the comparison gives practically identical results for full-time employees.

Comparisons are also made with other surveys which provide information on actual hours of work, such as the Federal population census, the Swiss Survey on the economically active population (ESPA), the Survey of wage structure and statistics on collective agreements.

Available series

For years prior to the current year: official indices and wage trends for the overall economy and by economic branch, sex, level of qualifications and/or area of activity.

Index of nominal and real wages, by sex and total, by economic division and sector, area of activity and level of qualifications, and variation compared with the previous year; Index of nominal wages, total, by economic classification and variation compared with the previous year.

Index of nominal and real wages and variations as a percentage, by category of workers (blue-collar and white-collar workers, sex, categories).

For the current year: wages trends at the most aggregate level.

Normal weekly hours of work in enterprises and variations compared with the previous year in absolute figures and percentages, by economic classification.

Normal weekly hours of work and variations by canton, region and economic division.

History of the statistics

Starting date of the statistical series:

statistics on normal hours of work in enterprises and wages trends: 1918, in the secondary sector only. Since 1985, with the entry into force in 1984 of the new Accident Insurance Act, which makes insurance compulsory for all workers, the statistics cover all sectors, apart from agriculture, hunting and fishing.

Major changes and revisions:

statistics on wages trends: up to 1993, the official figures came from the October survey of wages and earnings. Since 1994, the present statistics are the official source of data.

Since 1991, the 1995 edition of the General Nomenclature of Economic Activities (NOGA) has replaced the 1985 edition.

Before 1995, the Federal Office of Industry, Arts and Trades and Labour (OFIAMT) (now the Federal Office of Economic Development and Employment - OFDE) was responsible for processing the data collected on normal hours of work and wages, and publishing the results. Since then, it has been the OFS.

The statistics on wages trends are currently being revised. The aim in particular is to achieve the following objectives: (i) to take account of part-time employees; and (ii) to introduce a quarterly indicator of the economic situation.

Documentation and dissemination

Documentation:

OFS: Durée normale du travail dans les entreprises. Résultats commentés et tableaux (Berne, annual);

Idem: Communiqué de presse: statistique du volume du travail (ibid.); occasional publication;

Idem: Communiqué de presse: Heures de travail en 2000 (Neuchâtel, February 2002);

Idem: La statistique du volume du travail. Bases méthodologiques et définitions (Berne, 1997);

Idem: Indicateurs du marché du travail (annual).

Federal Department of Public Economy: La Vie économique (Berne, monthly);

OFS: La nouvelle statistique de l’évolution des salaires. Conception et résultats 1994 (Berne, 1995);

Idem: Evolution des salaires. Résultats commentés et tableaux (Neuchâtel, annual).

Idem: Communiqué de presse: Indice suisse des salaires 2001 (Neuchâtel, April 2002).

Dissemination:

OFS Website: http://www.statistique.admin.ch/.

Statistics not included in national publications or the Website may be obtained on request.

Data supplied to the ILO for dissemination

The following statistics have been supplied to the ILO for publication in the Yearbook of Labour Statistics and are available in LABORSTA:

Normal weekly hours of work for employees, by branch of economic activity (up to 1993); and in manufacturing industry; Worker's earnings (up to 1983) by branch of economic activity (secondary sector).

Other administrative sources of data:

statistics on collective agreements in Switzerland (statistique des conventions collectives de travail en Suisse - ECS) have been produced every two years on 1 May since 1992. Its purpose is to draw up an exhaustive and detailed list of collective agreements and model employment contracts in Switzerland. The survey is carried out directly among the contracting parties to a collective agreement, i.e. employers' associations of enterprises and associations of employees signatories to an agreement. The main structural characteristics recorded are the economic branch, the type of collective agreement, geographical scope, signatories, date of entry into force, the issue of industrial peace and the number of persons covered (employers and employees) by sex.

The annual survey of wage agreements (Enquête annuelle sur les accords salariaux - EAS) in areas covered by a collective agreement reports on bargaining between the social partners on changes in effective and minimum wages under collective agreements.

The central register of foreigners (Registre central des étrangers - RCE) provides monthly indicators of the number of active foreigners working in the various branches of activity, by sex and type of permit.

The statistics on teachers and health occupations (statistique des enseignants et celle des emplois dans le domaine de la santé) provides information on staff numbers and trends in personnel in the two branches.

The statistics on labour disputes (statistique des conflits collectifs du travail), carried out by the OFDE, lists strikes for economic reasons lasting at least one day. It is based on basic information drawn from the daily press, which leads to the employers and economic associations concerned. The latter must then complete a questionnaire providing information on the following characteristics: type of dispute (strike or lock-out), reason for dispute, number of employees concerned, length of action, working hours lost, economic branch, number of enterprises concerned and how the dispute was settled.

Synthesis statistics (statistiques de synthèse), which combine the primary data (surveys) and secondary data (administrative sources) are also produced, among them:

Statistics on the volume of labour (statistique du volume du travail), prepared by the OFS since 1991. The volume of labour of the permanent resident population is calculated on the basis of empirical data provided by the Swiss Survey on the economically active population, in which normal hours of work, overtime and absences are determined and aggregated by job. The volume of labour of other population groups working in Switzerland is calculated from the results of the employed population statistics (number of employed persons) and the population census (average working hours).

Definition of the volume of labour: actual working hours (= normal time + paid or unpaid overtime – absences). The volume of labour is obtained by adding actual annual working hours for all jobs (self-employed and employees who have worked at least one hour for remuneration during the reference year, and persons who, while not being paid, have worked in the family business during the reference year).

Reference period:

the calendar year.

Periodicity:

annual.

Criteria for breakdown of data on normal hours of work, overtime, absences and volume of labour: sex, origin/type of residence permit, economic section, rate of occupation and activity status.

Publications:

OFS: Communiqué de presse: statistique du volume du travail (Berne, annual);

Idem: La statistique du volume du travail. Bases méthodologiques et définitions (ibid., 1997);

Idem: Indicateurs du marché du travail (Neuchâtel, annual).

Monthly statistics on reductions in hours of work, produced by the Federal Office of Economic Development and Employment (OFDE) provides information on employees (by sex) and enterprises concerned, economic branches, cantons and hours laid-off.

Number of members of the Swiss Trade Union Federation (Union syndicale suisse - USS) and other employees organizations: this is a survey by the USS at 31 December each year of the number of members (persons) of trade unions and employer's associations affiliated to it. The USS publication also gives the membership of other major employees' organizations (Swiss Confederation of Christian Trade Unions (Confédération des syndicats chrétiens de Suisse), Federation of Swiss Employees' Societies (Fédération des sociétés suisses d’employés), Federal Union of Government and State Enterprise Employees (Union fédérative du personnel des administrations et des entreprises publiques) etc.), but excludes small organizations not affiliated to the USS.