Correspondence table between ISCO 88 and ISCO 08 using additional variables

1. Correspondence table between ISCO 88 and ISCO 08 using additional variables Eurostat Workshop on ISCO - 22 November 2011

2. The needs To code former years of LFS and other surveys in ISCO 08 : - give the possibility to produce historical series -  urgent need for ESEG-ESSnet : allow data analysis with ISCO08 with sufficient accuracy, so as to be able to choose the best ESEG prototype ; - working on european formatted files, using the same methodology, but with few variables - or every country for himself, using as much information as possible Correspondence table between ISCO 88 and ISCO 08 using additional variables

3. Correspondence tables : the state of the art • There is a theoretical “Correspondence table between ISCO 88 and ISCO 08” • It describes all the possible combinations of ISCO 88 -4d and ISCO 08 -4d. • No rule for decision Correspondence table between ISCO 88 and ISCO 08 using additional variables

4. Some proper ways to code former years in ISCO 08 • - Independent double-coding for the same individual, working with individual basic informations and using national coding programs. But problems : • obasic information is not necessarily available • ocoding programs might fail to code all situations. Eg France : SICORE fails in 20% cases  coded by an operator • - or : elaborate a Correspondence table ISCO 88  ISCO 08 using additionnal variables Correspondence table between ISCO 88 and ISCO 08 using additional variables

5. Correspondence table between ISCO 88 and ISCO 08 using additionnal variables • Input : • - ISCO88-3d : • o european required level • oNo satisfactory accuracy of national files at 4-digits level • - core variables : • ojob status : employee / self-employed • ofirm NACE activity : section level (NACE 1d) • - non core variables • ofirm size (in LFS database) : 9 employees or less / 10 or more • o ISCO-08 supposed required skill - level for the occupation • Ouput : ISCO08-2d Correspondence table between ISCO 88 and ISCO 08 using additional variables

6. ISCO-08 Supposed required skill - level for the occupation • §1 - primary • §2 - secondary • §3 - tertiary education 1 • §        4 - tertiary education 2 • eg Question in all French surveys • ·specialised worker • ·(highly)-qualified worker • ·employee • ·technician / associate professionnal • ·manager / professionnal • ·managing director • ·differents grades of civil servants Correspondence table between ISCO 88 and ISCO 08 using additional variables

7. Analysis of the Correspondence table • - if the variable is not available : the table points to the most likely ISCO 08 • - examples where no auxiliary variable is necessary • - NACE 1-d does not solve all problems : • Eg : tertiary support departments inside the firm (different from tertiary ouput activities of firms) Correspondence table between ISCO 88 and ISCO 08 using additional variables

8. Further developments • - first prototype by the end of november • - Validation early december • - France : • . national professional classification : PCS • . French LFS 2010 has been coded in ISCO 88 and ISCO 08, with independent methods using PCS and additionnal variables, • - other independent double-coded national LFS ?  other cross-validation of the Correspondence table ? • - if not, compare 2009 and 2011 structures • Need for a Correspondence table ISCO 88 -2d ISCO 08 -2d ? Correspondence table between ISCO 88 and ISCO 08 using additional variables

9. Thank you Correspondence table between ISCO 88 and ISCO 08 using additional variables