Conference and Workshop Presentations

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EWEPA XII, June 21-24 2011, Verona, Italy: " COST EFFICIENCY ANALYSIS OF ELECTRICITY DISTRIBUTION NETWORKS: APPLICATION OF THE STONED METHOD IN THE FINNISH REGULATORY MODEL".

FINNISH OPERATIONS RESEARCH SOCIETY - FORS SEMINAR, June 8 2011, Helsinki, Finland: " TEHOKKUUSANALYYSI PAIKALLISTEN MONOPOLIEN SÄÄNTELYSSÄ: STONED-MENETELMÄN SOVELTAMINEN SÄHKÖN JAKELUVERKKOTOIMINNAN VALVONNASSA ".

FINNISH ECONOMIC ASSOCIATION - ANNUAL MEETING, February 3-4 2011, Oulu, Finland: " COST EFFICIENCY ANALYSIS OF ELECTRICITY DISTRIBUTION NETWORKS: APPLICATION OF THE STONED METHOD IN THE FINNISH REGULATORY MODEL".

Business Technology seminar, Aalto University School of Economics, November 12, 2010, Helsinki, Finland: " COST EFFICIENCY ANALYSIS OF ELECTRICITY DISTRIBUTION NETWORKS: APPLICATION OF THE STONED METHOD IN THE FINNISH REGULATORY MODEL".

HECER LUNCH SEMINAR, November 8, 2010, Helsinki, Finland: "EFFICIENCY ANALYSIS AS A PRINCIPLE-AGENT GAME: AN APPLICATION TO THE REGULATION OF ELECTRICITY DISTRIBUTION NETWORKS".

VI NORTH AMERICAN PRODUCTIVITY WORKSHOP (NAPW), June 2-5, 2010, Houston, USA. Plenary talk: "TOWARDS ONE-STAGE NON-/SEMIPARAMETRIC ESTIMATION AND A UNIFIED FRAMEWORK". Oral presentation: "HOW OPERATIONAL CONDITIONS AND PRACTICES AFFECT PRODUCTIVE PERFORMANCE? EFFICIENT SEMI-PARAMETRIC ONE-STAGE ESTIMATORS*.

VATT Microeconometrics Study Group, May 24, 2010, Helsinki, Finland: "FRONTIERS OF EFFICIENCY ESTIMATION".

FINNISH ECONOMIC ASSOCIATION - ANNUAL MEETING, February 4-5, 2010, Tampere, Finland: "HOW OPERATIONAL CONDITIONS AND PRACTICES AFFECT PRODUCTIVE PERFORMANCE? EFFICIENT SEMI-PARAMETRIC ONE-STAGE ESTIMATORS".

MAATALOUSTIETEEN PÄIVÄT, January 12 – 13, 2010, Viikki (Helsinki), Finland. Oral presentation: " KUINKA EKOLOGISTA KESTÄVYYTTÄ EI TULISI MITATA?".

INSTITUTE FOR OPERATIONS RESEARCH AND MANAGEMENT SCIENCES ANNUAL MEETING, 11-14 October, San Diego, USA. Chairman of session: "Stochastic Nonparametric Approaches to Data Envelopment Analysis”. Oral presentations: “Data Envelopment Analysis as Nonparametric Least Squares Regression”, “Modeling Weak Disposability in Data Envelopment Analysis under Relaxed Convexity Axioms”, and “Productivity Differentials in Dairy Farming - A Comparison of Methods”

EWEPA XI, June 23-26, 2009, Pisa, Italy: "STOCHASTIC DEA: MYTHS AND MISCONCEPTIONS".

HECER APPLIED MICRO SEMINAR, March 11, 2009, Helsinki, Finland: "NEOCLASSICAL VERSUS FRONTIER PRODUCTION MODELS? TESTING FOR THE PRESENCE OF INEFFICIENCIES IN THE REGRESSION RESIDUALS".

FINNISH ECONOMIC ASSOCIATION - ANNUAL MEETING, February 5-6, 2009, Turku, Finland: "WEAK DISPOSABILITY IN NONPARAMETRIC PRODUCTION ANALYSIS: UNDESIRABLE OUTPUTS, ABATEMENT COSTS, AND DUALITY".

DEA2009 SYMPOSIUM, January 13-15, 2009, Osaka, Japan. Invited presentation: "DEA AS NONPARAMETRIC LEAST SQUARES REGRESSION".

Aston Seminar on Efficiency and Productivity Analysis, December 5, 2009, Aston Business School, Birmingham, UK. Invited presentation: "DEA AS NONPARAMETRIC LEAST SQUARES REGRESSION & STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA".

XIITH CONGRESS OF THE EUROPEAN ASSOCIATION OF AGRICULTURAL ECONOMISTS (EAAE), August 26-29, 2008, Gent, Belgium. Oral presentation: "STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA (STONED): CROSS-SECTIONAL FRONTIER ESTIMATION SUBJECT TO SHAPE CONSTRAINTS".

V North American Productivity Workshop (NAPW), June 24-27, 2008, New York City, USA. Oral presentation: "STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA (STONED) IN THE CASE OF PANEL DATA".

2nd Halle Workshop on Efficiency and Productivity Analysis – HAWEPA, May 26-27, 2008, Halle, Germany. Oral presentations: "STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA (STONED): CROSS-SECTIONAL FRONTIER ESTIMATION SUBJECT TO SHAPE CONSTRAINTS", and "MEASURING PRODUCTIVITY DIFFERENTIALS AN APPLICATION TO MILK PRODUCTION IN NORDIC COUNTRIES.

FINNISH ECONOMIC ASSOCIATION - ANNUAL MEETING, February 13 – 14, 2008, Jyväskylä, Finland. Oral presentation: "DIRECTIONAL NONPARAMETRIC LEAST ABSOLUTE DEVIATIONS METHOD FOR ESTIMATING THE BOUNDARY OF A CONVEX SET".

MAATALOUSTIETEEN PÄIVÄT, January 10 – 11, 2008, Viikki (Helsinki), Finland. Oral presentation: "MISTÄ JOHTUU KASVAVA ERO ELINTARVIKKEIDEN VÄHITTÄISMYYNTI JA TUOTTAJAHINTOJEN VÄLILLÄ?".

EEA/ESEM 2007, August 27 – 31, 2007, Budapest, Hungary. Oral presentation: "Representation Theorem for Convex Nonparametric Least Squares".

EURO XXII, July 8 – 11, 2007, Prague, Czech Republic. Oral presentation: "Stochastic Nonparametric Envelopment of Data: Combining Virtues of SFA and DEA in a Unified Framework".

EWEPA X, June 27-30, 2007, Lille, France. Oral presentation: "Stochastic Nonparametric Envelopment of Panel Data: Frontier Estimation with Fixed and Random Effects Approaches". Poster presentation: "STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA: CROSS-SECTIONAL FRONTIER ESTIMATION SUBJECT TO SHAPE CONSTRAINTS".

4th Nordic Econometric Meeting, 24-26 May 2007, Tartu, Estonia. Oral presentation: " REPRESENTATION THEOREM FOR CONVEX NONPARAMETRIC LEAST SQUARES".

GREMAQ ECONOMETRICS SEMINAR, February 23, 2007, Toulouse, France. Invited presentation: "Convex Nonparametric Least Squares and Its Microeconometric Applications".

FINNISH ECONOMIC ASSOCIATION - ANNUAL MEETING, February 1-2, 2007, Lappeenranta, Finland. Oral presentation: "REPRESENTATION THEOREM FOR CONVEX NONPARAMETRIC LEAST SQUARES".

The Nordic Efficiency and Productivity Workshop, November 2006, Copenhagen, Denmark. Oral presentation: " STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA: COMBINING VIRTUES OF SFA AND DEA IN A UNIFIED FRAMEWORK".

IV North American Productivity Workshop 2006, June 27-30, 2006, New York City, USA. Oral presentation: " STOCHASTIC NONPARAMETRIC ENVELOPMENT OF DATA: COMBINING VIRTUES OF SFA AND DEA IN A UNIFIED FRAMEWORK".

2ND INTERNATIONAL ECO-EFFICIENCY CONFERENCE, 28-30 June Egmondt aan Zee, Netherlands. Chairman of session: "Modelling and Operational Methods - Frontier Approaches". Oral presentation: "Data Envelopment Analysis in the Environmental Valuation for Cost-Benefit Analysis Analysis".

INSTITUTE FOR OPERATIONS RESEARCH AND MANAGEMENT SCIENCES ANNUAL MEETING, 13-16 November, San Francisco, USA. Chairman of session: "Data Envelopment Analysis: Advances in Environmental Performance, Productivity, and Portfolio Efficiency Analysis", Oral presentation: "Weak Disposability of Undesirable Outputs in DEA". 

NOMEPRE Symposium, 11 November, Wageningen, Netherlands. Oral presentation: "Convex Nonparametric Least Squares Frontier Estimation: A Marriage of SFA and DEA?".

CEMMAP WORKSHOP - Testing Stochastic Dominance Restrictions, 4-5 November, London, UK. Oral presentation: "PERFORMANCE MEASUREMENT AND BEST-PRACTICE BENCHMARKING OF MUTUAL FUNDS".

ECONOMETRIC SOCIETY WORLD CONGRESS 2005, 19-24 August, London, UK. Chairman of session: "Productivity Measurement". Oral presentation: "ON THE ANATOMY OF PRODUCTIVITY GROWTH: A DECOMPOSITION OF THE FISHER IDEAL TFP INDEX".

IX EUROPEAN WORKSHOP OF EFFICIENCY AND PRODUCTIVITY ANALYSIS (EWEPA) , 29 June - 2 July, Brussels, Belgium. Oral presentations: "ON THE MINIMUM EXTRAPOLATION PRINCIPLE OF DATA ENVELOPMENT ANALYSIS" and "ON THE ANATOMY OF PRODUCTIVITY GROWTH: A DECOMPOSITION OF THE FISHER IDEAL TFP INDEX".

14TH ANNUAL MEETING OF THE EUROPEAN ASSOCIATION OF ENVIRONMENTAL AND RESOURCE ECONOMISTS, 23-26 June, Bremen, Germany. Chairman of session: "The Firm and the Environment II". Oral presentation: "WEAK DISPOSABILITY IN NONPARAMETRIC PRODUCTION ANALYSIS WITH UNDESIRABLE OUTPUTS".

46TH ANNUAL CONFERENCE OF THE OPERATIONAL RESEARCH SOCIETY, 7-9 September, York, UK. Oral presentation: "THE LAW OF ONE PRICE IN DATA ENVELOPMENT ANALYSIS: RESTRICTING WEIGHT FLEXIBILITY ACROSS FIRMS".

4TH INTERNATIONAL DEA SYMPOSIUM, 5-6 September, Birmingham, UK. Oral presentation: "MEASURING PORTFOLIO EFFICIENCY OF MUTUAL FUNDS: A NEW STOCHASTIC DOMINANCE –BASED DEA APPROACH".

XX EUROPEAN CONFERENCE ON OPERATIONAL RESEARCH, 4-7 July, Rhodes, Greece. The semi-plenary presentation (MSSIP2004 prize): "THE LAW OF ONE PRICE IN DATA ENVELOPMENT ANALYSIS: RESTRICTING WEIGHT FLEXIBILITY ACROSS FIRMS".

NORTH AMERICAN PRODUCTIVITY WORKSHOP 2004, 22-25 June, Toronto, Canada. Chairman of session "DEA III". Oral presentation: "THE LAW OF ONE PRICE IN DATA ENVELOPMENT ANALYSIS: RESTRICTING WEIGHT FLEXIBILITY ACROSS FIRMS".

INTERNATIONAL ECO-EFFICIENCY CONFERENCE, 2-4 April, Leiden, Netherlands. Chairman of session "Approaches and Operational Methods". Presenter of paper: "GENERALIZED INDICES OF ECOLOGICAL EFFICIENCY FOR PRODUCTION ACTIVITIES GENERATING MULTIPLE ENVIRONMENTAL BADS"

INSTITUTE FOR OPERATIONS RESEARCH AND MANAGEMENT SCIENCES ANNUAL MEETING, 19-22 October, Atlanta, USA. Presenter of an invited paper: "DATA ENVELOPMENT ANALYSIS WITH UNBALANCED DATA".

YMPÄRISTÖ- JA LUONNONVARATALOUSTIETEEN KOLLOKVIO, 15 October, Helsinki, Finland. Invited Presentation: "EFFICIENT PORTFOLIO DIVERSIFICATION ACCORDING TO STOCHASTIC DOMINANCE CRITERIA: APPLICATIONS TO MIXED-ASSET FOREST PORTFOLIO MANAGEMENT AND ENVIRONMENTALLY RESPONSIBLE MUTUAL FUNDS"

8TH EUROPEAN WORKSHOP OF EFFICIENCY AND PRODUCTIVITY ANALYSIS, 25-27 September 2003, Oviedo, Spain. Presenter of paper: "DEA AND STOCHASTIC DOMINANCE EFFICIENCY ANALYSIS OF INVESTMENT PORTFOLIOS: DO EVIRONMENTALLY RESPONSIBLE MUTUAL FUNDS DIVERSIFY EFFICIENTLY?"

EUROPEAN ASSOCIATION FOR RESEARCH IN INDUSTRIAL ECONOMICS annual conference, 24-26 August 2003, Helsinki, Finland.

EEA-ESEM annual congress, 20-24 August 2003, Stockholm, Sweden. Presenter of contributed paper: "DUALITY THEORY OF NON-CONVEX TECHNOLOGIES".

EURO/INFORMS joint international meeting, 6-10 July 2003, Istanbul, Turkey. Presenter of invited paper: "USING STOCHASTIC DOMINANCE CRITERIA IN DATA ENVELOPMENT ANALYSIS OF MUTUAL FUNDS: THE CASE OF ENVIRONMENTALLY RESPONSIBLE FUNDS".

EAERE ANNUAL CONFERENCE, 28-30 June 2003, Bilbao, Spain. Presenter of poster: "DOES IGNORING MULTI-DESTINATION TRIPS IN THE TRAVEL COST METHOD CAUSE A SYSTEMATIC DOWNWARD BIAS?"

WIDER CONFERENCE on Inequality, Poverty and Human Well-being, 30-31 May 2003, Helsinki, Finland. Presenter of contributed paper: "BENCHMARKING SUSTAINABLE DEVELOPMENT: A SYNTHETIC META-INDEX APPROACH ".

55TH IAEC CONFERENCE, 12-16 March 2003, Vienna, Austria. Organizer and chairman of session: "Economies of Scale and Efficiency". Presenter of invited paper: "DUALITY THEORY OF NONCONVEX TECHNOLOGIES".

INSTITUTE FOR OPERATIONS RESEARCH AND MANAGEMENT SCIENCES ANNUAL MEETING, 17-20 November 2002, San Jose, USA. Organizer and chairman of the Session "Productivity Dynamics". Presenter of invited paper: "SYNTHETIC META-INDEX OF SUSTAINABLE DEVELOPMENT: A DEA APPROACH

International Conference on Risk and Uncertainty in Environmental and Resource Economics, June 5-7, 2002, Wageningen University, The Netherlands. Presenter of contributed paper: "STOCHASTIC DOMINANCE PORTFOLIO ANALYSIS OF FORESTRY ASSETS

Tuottavuuden mittaus julkisella sektorilla -workshop, 7.5. 2002, Helsinki, Finland. Co-organizer and presenter of paper: "TUOTTAVUUS, TEHOKKUUS JA UUSI TALOUS - TUTKIMUSPROJEKTIN ESITTELY" (In Finnish).

Nordic Mathematical Programming Symposium '01, November 15-17, 2001, Copenhagen, Denmark. Presenter of contributed paper: " DIVERSIFICATION IN STOCHASTIC DOMINANCE EFFICIENCY ANALYSIS".

Exclusive Workshop on DEA, September 21-22 2001, Odense, Denmark. Presenter of invited paper: "NONCONVEX TECHNOLOGIES".

EEA-ESEM, August 29 - September 1 2001, Lausanne, the Switzerland. Presenter of contributed paper: "SHADOW PRICE APPROACH TO PRODUCTIVITY MEASUREMENT".

EURO2001 CONFERENCE, July 9-11 2001, Rotterdam, The Netherlands. Presenter of invited paper:"SHADOW PRICE APPROACH TO PRODUCTIVITY MEASUREMENT".