Cost functions are nonconvex in the outputs when the technology is nonconvex: convexification is not harmless von Kerstens, Kristiaan, Van de Woestyne, Ignace

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Comparing Malmquist and Hicks–Moorsteen productivity indices: Exploring the impact of unbalanced vs. balanced panel data von Kerstens, Kristiaan, Van de Woestyne, Ignace

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Enumeration algorithms for FDH directional distance functions under different returns to scale assumptions von Kerstens, Kristiaan, Van de Woestyne, Ignace

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Global and local scale characteristics in convex and nonconvex nonparametric technologies: A first empirical exploration von Cesaroni, Giovanni, Kerstens, Kristiaan, Van de Woestyne, Ignace

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Plant Capacity and Attainability: Exploration and Remedies von Kerstens, Kristiaan, Sadeghi, Jafar, Van de Woestyne, Ignace

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Plant capacity notions in a non-parametric framework: a brief review and new graph or non-oriented plant capacities von Kerstens, Kristiaan, Sadeghi, Jafar, Van de Woestyne, Ignace

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A note on a variant of radial measure capable of dealing with negative inputs and outputs in DEA von Kerstens, Kristiaan, Van de Woestyne, Ignace

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Frontier-based vs. traditional mutual fund ratings: A first backtesting analysis von Brandouy, Olivier, Kerstens, Kristiaan, Van de Woestyne, Ignace

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Estimating scale economies in non-convex production models von Cesaroni, Giovanni, Kerstens, Kristiaan, Van de Woestyne, Ignace

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Non-parametric frontier estimates of mutual fund performance using C- and L-moments: Some specification tests von Kerstens, Kristiaan, Mounir, Amine, de Woestyne, Ignace Van

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Twisted Surfaces with Null Rotation Axis in Minkowski 3-Space von Goemans, Wendy, Van de Woestyne, Ignace

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Congestion in production correspondences von Briec, Walter, Kerstens, Kristiaan, Van de Woestyne, Ignace

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Metatechnology frontier and convexity: A restatement von Kerstens, Kristiaan, O’Donnell, Christopher, Van de Woestyne, Ignace

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Metafrontier productivity indices: Questioning the common convexification strategy von Jin, Qianying, Kerstens, Kristiaan, Van de Woestyne, Ignace

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Convex and nonconvex input-oriented technical and economic capacity measures: An empirical comparison von Kerstens, Kristiaan, Sadeghi, Jafar, Van de Woestyne, Ignace

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Procedures for ranking technical and cost efficient units: With a focus on nonconvexity von Kerstens, Kristiaan, Sadeghi, Jafar, Toloo, Mehdi, Van de Woestyne, Ignace

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Short- and long-run plant capacity notions: Definitions and comparison von Cesaroni, Giovanni, Kerstens, Kristiaan, Van de Woestyne, Ignace

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Comparing Luenberger and Luenberger-Hicks-Moorsteen productivity indicators: How well is total factor productivity approximated? von Kerstens, Kristiaan, Shen, Zhiyang, Van de Woestyne, Ignace

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Cost functions are nonconvex in the outputs when the technology is nonconvex: convexification is not harmless von Kerstens, Kristiaan, Van de Woestyne, Ignace

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Multi-Time and Multi-Moment Nonparametric Frontier-Based Fund Rating: Proposal and Buy-and-Hold Backtesting Strategy von Kerstens, Kristiaan, Mazza, Paolo, Ren, Tiantian, Van de Woestyne, Ignace

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