VI North American Productivity Workshop (NAPW), June 2-5, 2010, Houston, USA. Plenary presentation: "Towards One-Stage Non-/Semiparametric Estimation and a Unified Framework".

VATT Microeconometrics Study Group, May 24, 2010, Helsinki, Finland: "Frontiers of Efficiency Estimation".

Aston Seminar on Efficiency and Productivity Analysis, December 5, 2009, Aston Business School, Birmingham, UK. Timo Kuosmanen: "DEA as Nonparametric Least Squares Regression & Stochastic Nonparametric Envelopment of Data".

EAAE XII, August 26-29, 2008, Gent, Belgium. Kuosmanen, T., and M. Kortelainen (2007): "Stochastic Nonparametric Envelopment of Data (StoNED): Cross-sectional Frontier Estimation Subject to Shape Constraints".

NAPW V, June 24-27, 2008, New York City, USA. Kuosmanen, T. (2007): "Stochastic Nonparametric Envelopment of Data (StoNED) in the Case of Panel Data".

HAWEPA 2, May 26-27, 2008, Halle, Germany. Kuosmanen, T., and M. Kortelainen (2007): "Stochastic Nonparametric Envelopment of Data (StoNED): Cross-sectional Frontier Estimation Subject to Shape Constraints".

EURO XXII, July 8-11, 2007, Prague, Czech Republic: Kuosmanen, T. (2006) " Stochastic Nonparametric Envelopment of Data: Combining Virtues of SFA and DEA in a Unified Framework".

EWEPA X, June 27-30, 2007, Lille, France: Kuosmanen, T. (2007): "Stochastic Nonparametric Envelopment of Panel Data: Frontier Estimation with Fixed and Random Effects Approaches".

4th Nordic Econometric Meeting, 24-26 May 2007, Tartu, Estonia: Kuosmanen, T., and M. Kortelainen (2007): "Stochastic Nonparametric Envelopment of Data: Cross-sectional frontier estimation subject to shape constraints".

The XXIX Annual Meeting of the Finnish Society for Economic Research, February 1-2, 2007, Lappeenranta, Finland: Kuosmanen, T., and M. Kortelainen (2007): "Stochastic Nonparametric Envelopment of Data: Cross-sectional frontier estimation subject to shape constraints".

The Nordic Efficiency and Productivity Workshop, November 2006, Copenhagen, Denmark. Kuosmanen, T. (2006): "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, USA: Kuosmanen, T. (2006): " Stochastic Nonparametric Envelopment of Data: Combining Virtues of SFA and DEA in a Unified Framework".

VI North American Productivity Workshop (NAPW), June 2-5, 2010, Houston, USA. Oral presentation: "How Operational Conditions and Practices Affect Productive Performance? Efficient Semi-parametric One-Stage Estimators.

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".

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 presentation: “Data Envelopment Analysis as Nonparametric Least Squares Regression”.

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".

DEA2009 Symposium, January 13-15, 2009, Osaka, Japan. Invited presentation: DEA as Nonparametric Least Squares Regression".

V North American Productivity Workshop (NAPW), June 24-27, 2008, New York City, USA. Kortelainen, M. (2008): "Estimation of Semiparametric Stochastic Frontiers Under Shape Constraints", Kuosmanen, T. and A. Johnson (2008): "Parallel Development of Nonparametric Models".

2nd Halle Workshop on Efficiency and Productivity Analysis – HAWEPA, May 26-27, 2008, Halle, Germany. Kuosmanen, T. and A. Johnson (2008): "Parallel Development of Nonparametric Models".

XXX Annual Meeting of the Finnish Society for Economic Research, February 13 – 14, 2008, Jyväskylä, Finland. Kuosmanen, T., and S. Lozano (2008): "Directional Nonparametric Least Absolute Deviations Method for Estimating the Boundary of a Convex Set", Kortelainen, M. (2008): "Estimation of Semiparametric Stochastic Frontiers Under Shape Constraints".

EEA/ESEM 2007, August 27 – 31, 2007 Budapest, Hungary: Kuosmanen, T. (2007): "Representation Theorem for Convex Nonparametric Least Squares".

EWEPA X, June 27-30, 2007, Lille, France. Kortelainen, M. (2007): "Estimation of Semiparametric Stochastic Frontiers Under Shape Constraints".

4th Nordic Econometric Meeting, 24-26 May 2007, Tartu, Estonia, Kuosmanen, T. (2007): " Representation Theorem for Convex Nonparametric Least Squares".

GREMAQ econometrics seminar, February 23, 2007, Toulouse, France: Kuosmanen, T. (2007): " Representation Theorem for Convex Nonparametric Least Squares".

The XXIX Annual Meeting of the Finnish Society for Economic Research, February 1-2, 2007, Lappeenranta, Finland: Kuosmanen, T. (2007): " Representation Theorem for Convex Nonparametric Least Squares".