1. Heterogeneity in frontier analysis: does it matter for benchmarking farms?

   • Elizabeth Ahikiriza
   • Jef Van Meensel
   • Ludwig Lauwers

   OriginalPaper 05 May 2021 Pages: 69 - 84

   

2. Modeling dependence in two-tier stochastic frontier models

   • Alecos Papadopoulos
   • Christopher F. Parmeter
   • Subal C. Kumbhakar

   OriginalPaper 13 July 2021 Pages: 85 - 101

3. Density deconvolution with Laplace errors and unknown variance

   • Jun Cai
   • William C. Horrace
   • Christopher F. Parmeter

   OriginalPaper 28 July 2021 Pages: 103 - 113

   

4. Changes in the productive efficiency of U.S. flour mills in the late nineteenth century: an input-distance-function approach

   • Yongseung Han
   • Arthur Snow
   • Ronald S. Warren Jr

   OriginalPaper 07 September 2021 Pages: 115 - 132

   

5. Quadratic-mean-of-order-r indexes of output, input and productivity

   • Hideyuki Mizobuchi
   • Valentin Zelenyuk

   OriginalPaper 08 September 2021 Pages: 133 - 138

6. Vertical integration vs. specialization: a nonparametric conditional efficiency estimate for the global semiconductor industry

   • Guangshun Qiao
   • Zhan-ao Wang

   OriginalPaper Open access 13 September 2021 Pages: 139 - 150

   

7. Estimation of bank performance from multiple perspectives: an alternative solution to the deposit dilemma

   • Dan Li
   • Yanfeng Li
   • Jiawei Yang

   OriginalPaper 18 September 2021 Pages: 151 - 170