Seppo Laaksonen

Ph.D., Chief Methodologist at the Statistics Finland, Docent

E-mail: Seppo.Laaksonen@Stat.Fi

Seppo Laaksonen obtained his M.Sc. (1970) and Lic.Phil. (1980) at the University of Helsinki, and Ph.D. (1992) at the University of Jyväskylä. He was an Associate Professor and a lecturer in Statistics at the University of Helsinki during 1972–1979. He has worked as a senior statistician and a unit leader at the Statistics Finland (1980 – 89, 1983–1984), and as a senior researcher in the Social Statistics Division (1985 –1989). He was also a project leader for the Eurostat Enterprise Panels Project in 1992–1994. In the autumn of 1996 he was a part-time researcher of the Academy of Finland. Since 1990 he has been the chief methodologist in the Methodological Department of the Statistics Finland. At the Stakes (National Research Centre for Welfare) he has been involved as a part-time project leader and a senior researcher from 1997 onwards. Since 1996 he has also given lectures at the University of Jyväskylä. He also holds a Docentship in Statistics at the University of Tampere.

Research interests:

• sampling techniques
• adjustment for nonresponse and coverage errors
• longitudinal/panel analysis
• enterprise demography
• technology and employment
• wage econometrics
• statistical disclosure control methods
• quality in statistics; methods for international comparisons; methods for evaluation of the successfulness of the use of public services. 

Recent publications

• Laaksonen, Seppo (1995). European Enterprise Panels Network: Concepts and Strategies Proceedings of First Eurostat Workshop on Techniques of Enterprise Panels, February 20-23, 1994. Luxembourg, pp. 21-39. The proceedings is titled 'Techniques and uses of enterprise panels.' The same volume comprises the introduction to the proceedings written by the same author (pp. 11-20).
• Laaksonen, Seppo (1995). Confidential Handling of Longitudinal Micro Data Files of Enterprise Surveys. 2nd International Seminar on Statistical Confidentiality. Luxembourg, November 28-30, STATEC and Eurostat. STATEC and Eurostat Proceedings.
• Vainiomäki, Jari and Laaksonen, Seppo (1995). Inter-Industry Wage Differences in Finland. Evidence from Longitudinal Census Data, 1975–85. Labour Economics, June.
• Laaksonen, Seppo (1995). International Comparability of Business Surveys: Some Key Factors based on European Experiences. Invited paper for the 50th Session of the International Statistical Institute, Beijing, August 29. 13 pages.
• Laaksonen, Seppo (1995). Statistical Methodology and the Principle of Subsidiarity: a Challenging Optimization Task for the European Statistical System. Invited paper for the Proceedings (published 1997 Under Title European Harmonization, National Decentralization and Quality) of the Conference on Methodological Issues in Statistics. Statistics Sweden. June 12-13. 8 pages.
• Heiskanen, Markku and Laaksonen, Seppo (1996). Non-Response and Ill-being at the Finnish Survey of Living Conditions. In: Laaksonen, Seppo (ed.): International Perspectives on Nonresponse. Proceedings of the Sixth International Workshop on Household Survey Nonresponse. Statistics Finland. Research Reports 219, 81-100.
• Laaksonen, Seppo (1996). Comments to the paper "Comparability of the Harmonized Labour Force Survey in the European Union" by Eszter Körmendi; and Comments to the paper "The International Comparability of the Community Innovation Survey" by Per Nymand-Andersen. In: The Role of Statisticians in Today's Information Society. Statistical Reports of the Nordic Countries 66, 387-393. Copenhagen.
• Vainiomäki, Jari and Laaksonen, Seppo (1997). The Effects of Technology on Job Creation and Destruction in Finnish Manufacturing, 1986–93. In: Laaksonen, Seppo (ed.). The Evolution of Firms and Industries - International Perspectives. Statistics Finland. Research Reports 223, 234-253.
• Laaksonen, Seppo and Vainiomäki, Jari (1997). The Effects of Technology on Wages in Finnish Manufacturing, 1974-93. In: Laaksonen, Seppo (ed.). The Evolution of Firms and Industries - International Perspectives. Statistics Finland. Research Reports 223, 454-475.
• Laaksonen, Seppo (1997). Ponderation et variables auxiliaires dans les enquetes par sondages. Colloque Francophone sur les Sondages, 190-193. Universite Rennes 2.
• Laaksonen, Seppo (1997). Paper of the invited discussant in the invited Speakers' Session on Imputation and Missing Data chaired by J.N.K. Rao. 51st Session of the International Statistical Institute. Istanbul.
• Laaksonen, Seppo (1998). Regression-Based Nearest Neighbour Hot Decking. ZUMA, Methoden und Analysen. No. 4. Nonresponse in Survey Research. Mannheim. pp. 285-298.
• Laaksonen, Seppo and Teikari, Ismo (1998). Analysis of Effects of Reconstructed Business Units on Employment and Productivity. Longitudinal study using synthetic units of Finnish manufacturing. In: Silvia Biffignandi (ed). "Micro and Macrodata, Statistical Analysis and International Comparison", Physica Verlag, 1998.
• Laaksonen, Seppo (1998). Weighting and Auxiliary Variables in Sample Surveys. In: Approches nouvelles en sondage". Dunod. France. pp. 168-180. (in print).
• Ilmakunnas, Pekka, Laaksonen, Seppo, Maliranta, Mika, Piekkola, Hannu, Vainiomäki, Jari and Haaparanta, Pertti (1998). Linking of Employee and Plant Characteristics for the Analysis of Finnish Manufacturing. Prepared for the International Symposium on Employer-Employee Matched Data, Arlington, May 21-22. To be published in a special volume of an US economic journal.

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