Luitzen de Boer

TL;DR: In this paper, a review of decision methods reported in the literature for supporting the supplier selection process is presented, based on an extensive search in the academic literature, and the proposed methods specifically accommodate for buying situations for which few or no decision models were published so far.

TL;DR: In this paper, the authors show that an out-ranking approach may be very well suited as a decision-making tool for initial purchasing decisions, such as make-or-buy decisions and supplier selection.

TL;DR: In this article, a conceptual model for studying the direct and indirect impact of various forms of electronic procurement (EP) on a firm's integral purchasing (-related) costs is presented.

TL;DR: A review of the existing literature on green supplier selection can be found in this paper, where 60 articles are reviewed, all published in peer-reviewed journals between 1991 and 2011, and a conceptual model is presented, aimed at integrating the different dimensions of green suppliers selection and identifying directions for future research.

TL;DR: To what degree green public procurement is implemented in Norwegian municipalities and counties and which capabilities are critical for successful green procurement is investigated and to what degree environmental information is requested in call for tenders is investigated.