Annex B: Technical notes
Employment data sources The following sources have been used in estimating employee jobs and self-employment for the core hospitality industry:
Annual Business Inquiry (ABI): This provides sectoral coverage of employee jobs and includes 4 digit sectors and jobs by GB region and local authority. The ABI employee job series is published under the SIC 2003 and SIC 2007 classifications, although whereas the SIC 2003 series is published for the years 1998 to 2008, the SIC 2007 series is only available for 2007 and 2008.
Census of Employment: Northern Ireland employee data is available from the Census of Employment which is produced by the Department of Enterprise, Trade and Investment (DETI). The series is only available on SIC 2003 basis currently and is only published bi-annually (e.g. 2003, 2005, 2007). NI employee jobs data on a SIC 2007 basis is estimated by taking a ratio of SIC 2003 NI to GB jobs, applied to the GB SIC 2007 employee job figures.
Labour Force Survey (LFS): Similar to the ABI, the LFS is a survey however the sample sizes used in this survey are significantly smaller employment.
than the ABI. We use the average of 3 years of data for self- ABI data collection procedures
As explained above, the Annual Business Inquiry is a major data source for this study given that it provides employee jobs data by 4-digit SIC classification for all local authorities and regions in Great Britain (as well as financial information on GVA, turnover etc).
In 2006 there were some changes made to the way in which the ABI survey analysis was conducted in order to improve the quality of the survey results. These changes will see the ABI gradually move across to become the Business Register and Employment Survey (BRES) with all of the changes fully implemented by December 2010 when the 2009 ABI data will be published.
Prior to 2006, the ABI survey return forms were sent to a selection of businesses across Great Britain, known as reporting units (RUs), as identified by the Inter-Departmental Business Register. The survey return asks for information relating to location, industry SIC of the main activity and registered employment for each local unit (LU).
After 2006, the ABI has gradually moved across to the BRES, a system whereby the data is based solely on the information provided by the local units thus improving the quality of the local level data.
By way of example, consider a RU which is the head office of a major restaurant / café which may have a LU located within an airport. Prior to 2006, the published ABI data would have been built up using the information provided by the RU which might contain information stating that there is one local unit located at the airport (determined by the postcode provided) with 15 employees in hotels & restaurants. From 2006 onwards the survey returns were sent directly to local units and the published data has been built up based on the information provided by the local units.
Note that the definition ABI / BRES asks for the number of employees on a business payroll and that the employee must have a contract with the business concerned thus eliminating the risk of double counting.
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