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2015
Bhaumik, Sumon K.; Kumbhakar, Subal C. and Sun, Kai (2015). A note on a semiparametric approach to estimating financing constraints in firms. European Journal of Finance, 21 (12), pp. 992-1004.
2014
Heshmati, Almas; Kumbhakar, Subal C. and Sun, Kai (2014). Estimation of productivity in Korean electric power plants:a semiparametric smooth coefficient model. Energy Economics, 45 , pp. 491-500.
Parmeter, Christopher F.; Sun, Kai; Henderson, Daniel J. and Kumbhakar, Subal C. (2014). Estimation and inference under economic restrictions. Journal of Productivity Analysis, 41 (1), pp. 111-129.
2013
Heshmati, Almas; Kumbhakar, Subal C. and Sun, Kai (2013). Estimation of productivity in Korean electric power plants:a semiparametric smooth coefficient model. IN: 13th European Workshop on Efficiency and Productivity Analysis. 2013-06-17 - 2013-06-20.
2012
Bhaumik, Sumon; Dimova, Ralitza; Kumbhakar, Subal and Sun, Kai (2012). Does institutional quality affect firm performance? Insights from a semiparametric approach. Discussion Paper. IZA, Bonn (DE).
Zhang, Rui; Sun, Kai; Delgado, Michael S. and Kumbhakar, Subal (2012). Productivity in China's high technology industry:regional heterogeneity and R&D. Technological Forecasting and Social Change, 79 (1), pp. 127-141.
Sun, Kai; Kumbhakar, Subal and Poghosyan, Tigran (2012). Total factor productivity growth in the US banking industry:a multiproduct distance function approach. Working Paper. UNSPECIFIED. (Unpublished)
2011
Sun, Kai; Henderson, Daniel J. and Kumbhakar, Subal (2011). Biases in approximating log production. Journal of Applied Econometrics, 26 (4), pp. 708-714.