Current status of ongoing seasonal adjustment activities 2/23/2019 Current status of ongoing seasonal adjustment activities Rosa Ruggeri Cannata www.ec.europa.eu/euroindicators Eurostat - Unit D1 Key Indicators for European Policies

2/23/2019 Introduction Attention on harmonisation of SA practices for PEEIs and infra-annual statistics Revitalisation of the Seasonal Adjustment Steering Group Methodological changes in NA (chain-linking) Reconvention of the Task Force on Seasonal Adjustment of Quarterly National Accounts

Ongoing SA initiatives - Outline 2/23/2019 Ongoing SA initiatives - Outline Seasonal Adjustment Steering Group (joint with ECB DG Statistics) Task Force on Seasonal Adjustment of Quarterly National Accounts (joint with ECB DG Statistics) Training activities Improving Demetra

Seasonal Adjustment Steering Group 2/23/2019 Seasonal Adjustment Steering Group Co-chaired by ECB DG Statistics and Eurostat Composed by delegates from 8 Member States, both from NSIs and NCBs First meeting 14th February, Luxembourg Subgroup on ESS SA guidelines Subgroup on metadata template Next meeting 11th July Frankfurt

Task Force on SA of Quarterly National Accounts (1) 2/23/2019 Task Force on SA of Quarterly National Accounts (1) Co-chaired by ECB DG Statistics and Eurostat Composed by delegates 19 Member States, from NSIs, NCBs and Wifo First meeting - 15th February, Luxembourg Previous TF final report: 10 recommendations identified for review/amendment Subgroup to analyse different aspects of three chain-linking techniques currently used in European countries

Task Force on SA of Quarterly National Accounts (2) 2/23/2019 Task Force on SA of Quarterly National Accounts (2) Questionnaire run successfully on chain-linking practices Second meeting 23th-24th April, Frankfurt Discussion of the three papers on chain-linking techniques Discussion of an empirical study on calendar and seasonal factors of some NA components Creation of a group to draft a detailed paper about chain-linking effects on the correction of calendar adjustments

Other activities Demetra: Training activities 2/23/2019 Other activities Demetra: Recently improved in order to incorporate recent versions of X-12-Arima and TRAMO-SEATS engines X-12-Arima and TRAMO-SEATS on equal footing Training activities ESTP training in Luxembourg, 11th-15th June with the participation of David Findley, Agustin Maravall and Dominique Ladiray

2/23/2019 Future Work Finalise ESS SA guidelines and present them to the CMFB and the SPC Reflection has started on Demetra: Procedural or modular underlying architecture? Open source implementation language?

Thank you for your attention 2/23/2019 Thank you for your attention