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연구
[1] "A Production Frontier Model with Flexible Temporal Variation in Technical Inefficiency",(coauthored with P. Schmidt) in the Measurement of Productive Efficiency: Techniques and Applications, H. Fried, C.A.K. Lovell and S. Schmidt, eds., Oxford University Press, 1993.
[2] "GMM Estimation of Linear Panel Data Models with Time-Varying Individual Effects", (coauthored with S.C. Ahn and P. Schmidt) Journal of Econometrics, vol.101, no.2, 2001.
[3] "Stochastic frontier models with multiple time-varying individual effects," (coauthored with S.C. Ahn and P. Schmidt) Journal of Productivity Analysis, vol. 27, no.1, 2007.
[4] "Fan Demand and the Uncertainty of Outcome Hypothesis in Baseball." (coauthored with R. Fort) Review of Industrial Organization, vol.33, no.4. 2008.
[5] "Is the small-ball strategy effective in winning games? A stochastic frontier production approach", Journal of Productivity Analysis, vol.35, no.1, 2011.
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