An important contribution to the environmental impact of agro-food supply chains is related to the agricultural technology and practices used in the fields during raw material production. This problem can be framed from the point of view of the Focal Company (FC) as a raw material Green Supplier Selection Problem (GSSP). This paper describes an extension of the GSSP methodology that integrates life cycle assessment, environmental collaborations, and contract farming in order to gain social and environmental benefits. In this approach, risk and gains are shared by both parties, as well as information related to agricultural practices through which the FC can optimize global performance by deciding which suppliers to contract, capacity and which practices to use at each supplying field in order to optimize economic performance and environmental impact. The FC provides the knowledge and technology needed by the supplier to reach these objectives via a contract farming scheme. A case study is developed in order to illustrate and a step-by-step methodology is described. A multi-objective optimization strategy based on Genetic Algorithms linked to a MCDM approach to the solution selection step is proposed. Scenarios of optimization of the selection process are studied to demonstrate the potential improvement gains in performance.
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Green data centres are the talk of the day. But who in fact is involved in developing green data centres? What is their contribution? And what does this contribution constitute in practical terms? This article states which stakeholders are involved in green data centres in the Netherlands, what their involvement is and what effect their involvement has. The article starts by giving the definitions for sustainability and by determining the stakeholders and their possibilities in this field. Next, we examine the actual impact of each stakeholder for arriving at greener data centres. This leads to a number of conclusions for achieving a larger degree of sustainability.
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The research concerned semi-dyadic relations in SMEs and large companies that managed innovative suppliers in New Zealand construction supply chains. It explored effects of (independent) company variables on (mediating) procurement management variables, and also the effects of these variable types on (dependent) procurement performance variables when managing innovative suppliers.Exploratory interviews (N=5) revealed that innovation procurement seemed professional and logical within their contexts.Survey I (N=112) revealed that most case companies followed a product leadership strategy, and were equally entrepreneurial to innovative customers and innovative suppliers. They were innovative and gave innovative suppliers a dominant innovation role. They seemed to prefer radical innovations less than incremental innovations, but still somewhat more than New Zealand averages. Companies had slight preferences for new, small, or foreign suppliers for radical innovations. Innovations with supplier interactions were more beneficial to the company and the natural environment, than innovations without supplier interactions. Higher company innovation-benefits could equal higher environmental innovation-benefits. This profile differed from the profile of average companies in the construction supply chain.Survey I found weak correlations among output performance variables and process or proxy performance variables.Dependent (procurement and performance) variables were affected differently. Conversely, independent (company and procurement) variables had different effects.Different from extant literature, Survey I found limited statistically-significant effects of company variables on procurement management variables, and of these two variable types on performance. A minority (41%) of company variables affected procurement variables; only two company variables (13%) affected performance; a minority (40%) of procurement variables affected performance.Product leadership and NPD/innovation experience affected performance. Moreover, trust, lifestyle strategies and survival strategies affected procurement variables. Conversely, 27% of performance variables (satisfaction on marketing & sales; benefits for the natural environment) and 30% of procurement variables (entrepreneurial orientation with innovative suppliers, relation intensity with manufacturers, and small vs large suppliers for radical innovations) responded stronger on some company variables. Company size (<99 versus >250 staff) had little effects.Innovating, opportunity-seeking and trust towards innovative suppliers, and relation intensity with innovative service providers had highest effects on performance. Conversely, 46% of the performance variables (satisfaction with innovative suppliers, benefits for natural environment and company) responded stronger on innovating, opportunities-seeking and trust variables.Survey II (N=33) identified 12 procurement best-practices that respondents used for specific supplier or innovation types.Causality should be treated cautiously. Findings reflected the inconclusive results from extant literature. The research provided a nuanced and varied understanding on management of innovative suppliers, on the effects of entrepreneurial orientation to innovative suppliers, on the limited effects of company size, on the complex relations between various performance measures, and on entrepreneurship as a theoretical lens in innovation procurement. Companies had several options on how they managed their innovative suppliers. Additionally, the company characteristics and context of in this nascent research domain could be more important than commonly assumed from extant research.
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