Work in progress

Working papers:

  1. “Production with storable and durable inputs: nonparametric analysis of intertemporal efficiency” (with Laurens Cherchye & Bram De Rock), R&R at European Journal of Operational Research

Current work in progress:

Efficiency and productivity analysis

  1. “The dynamic Luenberger-Hicks-Moorsteen productivity indicator with an application to dairy farms in South West England” (with Frederic Ang)
  2. “Exact and superlative measurement of Luenberger-Hicks-Moorsteen productivity” (with Frederic Ang)

Consumption analysis

  1. “Individual welfare analysis for collective households” (with Laurens Cherchye, Sam Cosaert, Bram De Rock & Frederic Vermeulen)
  2. “What can choices reveal about product characteristics? Gorman revisited.”


  1. “Benefit-of-the-doubt performance measurement of social enterprises: mission lock-in or mission drift?” (with Johan Bruneel, Laurens Cherchye & Matthias Staessens)
  2. “A DEA-based methodology to determine customer value” (with Laurens Cherchye, Bram De Rock, Bart Dierynck & Filip Roodhooft)



I keep a repository with useful MATLAB utility functions that intend to make MATLAB programming just that more easy.


Nonparametric Efficiency and Productivity Analysis for Julia. A toolbox for doing efficiency analysis and computing productivity change using nonparametric techniques.


NonParametric Regression Laboratory for MATLAB (NPRLab) is a MATLAB toolbox for nonparametric regression. In particular, it implements a variety of linear estimators. Data rescaling and bandwidth tuning is done automatically by the software. Finally, the toolbox also features confidence interval estimation by the volume-of-tube formula both in a one-dimensional and multi-dimensional setting.


In the past, I was a daily advisor for 3 individual master thesis students and 1 group of 5 master thesis students at KU Leuven.

During the academic year 2016-2017 I was the teaching assistant for the module Seminarie methoden voor economische analyse in the 2nd semester at KU Leuven.


  • pjk at ifro dot ku dot dk
  • +4535324878
  • Rolighedsvej 23, 1958 Frederiksberg C, Denmark