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The purpose of this article is to provide academicians and practitioners alike with a theory-based framework regarding horizontal collaboration in logistics. The proposed tool is based on an incremental perspective, according to two main dimensions: mutual trust among partners and the extent of the cooperation.

This study used a “synthesising” approach to gauge potential contributions previously spread across different streams of research and disciplines that are now integrated into the framework. We conduct a deep literature review to characterise the horizontal collaboration phenomenon along two levels of analysis. In doing so, we examined relevant literature in the field of horizontal cooperation in logistics to critically appraise aims of, impediments to and existing models for horizontal collaboration. Additionally, we reviewed seminal literature of four organisational theories to assess their potential to contribute to the theoretical foundations of the growing topic of horizontal collaboration. Transaction Cost Economics, Social Exchange, Resource Dependence and Social Dilemma represent the theoretical foundations to cast light to how to design and implement inter-organisational horizontal initiatives.

The proposed tool organises horizontal collaborations within three steps for each of the two levels of classification: trust and extent of the cooperation. The organisational theories reviewed play different roles to help in different stages of the horizontal collaboration. Additionally, for each combination of trust/extent of the cooperation coherent pairs of aims of the collaboration and assets that are to be shared are defined.

The article represents the first attempt to analyse horizontal collaboration from within the discipline itself and from the wider field of SCM through other well-established theoretical lenses. The proposed tool has shed some light into the black box of (un)successful horizontal collaboration, but it is theory based – which represents its main limitations – thus, requiring further testing of the research streams suggested in the paper.

The article not only gives insights into theoretical challenges of horizontal collaborations that needs further investigation but is also useful to companies involved in horizontal collaborations by helping define coherent assets that are to be shared to achieve specific goals. In its more theoretical underpinning, the framework can also inspire the partnership philosophy and help sketch a collaborative evolutionary path.

The lack of a theoretically robust landmark that could help understand, design and implement horizontal collaborations has been defined as a major theoretical and practical shortcoming. The article represents the first contribution aimed at filling that gap.

Collaborative Logistics (CL) and merging operations are crucial strategies for reducing costs and improving service in transportation companies. This study proposes a model for optimizing efficiency in supply chain networks through inbound and outbound Collaborative Logistics implementation among the carriers in centralized, coordinated networks with cross-docking.

A mixed-integer non-linear programming model is developed to determine the optimal truck-goods assignment while gaining economies of scale through mixing multiple less-than-truckload (LTL) products with different weight-to-volume ratios. Unlike the previous studies that have considered Collaborative Logistics from the cost and profit-sharing perspective, the proposed model seeks to determine an appropriate form of Collaborative Logistics in the VRP.

This article shows that in a three-echelon supply chain consisting of a set of suppliers, a set of customers and a cross-docking terminal, partial collaboration among the inbound carriers and outbound carriers outperforms no/complete collaboration. This approach enhances the supply chain efficiency by minimizing the total transportation costs, the total transportation miles and the total number of trucks and maximizing fleet utilization. While addressing the four points, the role of collaborative logistics among the carriers was discussed. In a three-echelon SC consisting of a set of suppliers, a set of customers and a cross-docking terminal, partial collaboration among the inbound carriers and outbound carriers outperforms no/complete collaboration. Using a combination of experimental analysis and optimization process, it was recommended that managers be cautious that too much (full or complete) or no collaboration can result in SC performance deterioration.

The suggested approach enhances the supply chain efficiency by minimizing the total transportation costs, the total transportation miles and the total number of trucks and maximizing fleet utilization. While addressing the four points, the role of Collaborative Logistics among the carriers was discussed.

This study investigates the impact of agri-food supply chains (AFSCs) characteristics on the antecedents of horizontal logistics collaboration (HLC). Specifically, the study compares the relationship between collaboration activities and outcomes for companies in and outside AFSCs.

First, a survey was used to collect data from different industries. Second, confirmatory factor analysis and structural equation modeling were applied to compare the measurement and structural models from different industry categories.

The results support the premise that collaboration improves trust and commitment in the relationship, which in turn enhance satisfaction. The results also show the existence of a minor influence of AFSCs characteristics on HLC antecedents, in the form of an indirect impact of dedicated investments on commitment.

The factors having a significant influence on the collaboration outcomes and their respective effects are generally similar across food and nonfood supply chains, providing opportunities for interdisciplinary and collaboration experiences.

This research contributes to the body of knowledge on interfirm collaboration by considering the specificities of HLC. It also highlights the importance of conducting contingency research on collaborative experiences, as firms from different industry contexts operate under distinct operational conditions.

The paper aims to develop a supply chain-driven model horizontal logistics collaboration (HLC). HLC initiatives can fail. To improve the chance of success, a thorough consideration of the potential issues involved, such as seeking supply chain partners’ support, ensuring access to information/data security and assessing whether an HLC model could bring improvements to a wide range of supply chain metrics rather than reductions in distribution costs only, needs to be understood before deciding to proceed with such an initiative.

A two-stage methodology is deployed. As part of Stage 1, a series of 20 semi-structured interviews with senior managers from retailers, retailers’ suppliers and logistics service providers were undertaken. Subsequently, in Stage 2, a focus group with practitioners from retailers and logistics service providers was run to verify the findings gathered during Stage 1. Four elements of a new HLC project being considered are investigated by supply chain champions across the UK Fast-Moving Costumer Goods industry, namely, consideration factors, required synergies, enablers and anticipated output metrics.

When considering whether to embark on an HLC project, the supply chain requirements need to be taken into account and potential supply chain performance benefits projected. The paper identified several consideration factors; synergies and enablers that support the development of HLC projects are identified, such as legislation, trust among partners, common suppliers and delivery bases, capable third party logistics (3PL) and an effective commercial model, including a fair sharing of benefits.

The research provides new understanding in accounting for the needs of the supply chain when considering an HLC initiative involving leading players from the retail sector.

The importance of taking a supply chain approach when evaluating the feasibility of HLC is demonstrated. HLC arrangements among competing supply chains need to be designed and run by taking account of all supply chain partners, namely, suppliers, 3PLs and customers (in this case, retailers).

The contribution is threefold: identification of outset consideration factors, ideal required synergies, actioning enablers and wider supply chain metrics of HLC; development of a supply chain-driven model for HLC, which includes in the decision-making whether or not to adopt a horizontal logistics collaboration model, wide supply chain metrics such as stock levels of finished products and shelf availability, inventory, working and fixed capital, and product waste in addition to distribution costs; and, the proposal of a new definition for HLC which challenges published definitions.

The purpose of this paper is to develop a comprehensive model for horizontal logistics collaboration (HLC), including the collaboration types, enablers, context influence and performance indicators.

First, this study discusses the currently available typologies and their limitations and defines relevant collaboration classification dimensions. Then, a detailed analysis of each dimension is conducted, including the identification of resulting collaboration types. Next, collaboration enablers and the context influence are discussed, as well as their implications on the logistics system, with a specific focus on agri-food supply chains (AFSCs). Additionally, adequate key performance indicators (KPIs) are selected to evaluate collaboration outcomes. Finally, the horizontal logistics collaboration concept (HLCC) is applied to an illustrative case study from AFSCs.

The results show that HLC is a complex strategy where several elements intervene in the creation of the collaboration scenario. The research also shows that the specific characteristics of AFSCs influence the partners' selection process and increase the importance of partners' similarity and information exchange.

The results provide managers with practical insights into the dynamic nature of HLC both at the operational and relational levels.

This paper provides a theoretical contribution by introducing a new comprehensive model for HLC and a practical typology that allows a deeper understanding of the mechanisms governing different HLC scenarios.

The purpose in this paper is to develop a systematic literature review aiming to reveal innovation opportunities associated with the thematic collaboration and trust in the reverse logistics field.

The authors adopted a parallel analysis approach segregating the systematic literature review papers in two groups at NVivo®, collaboration and trust in the supply chain and collaboration and trust in reverse logistics, aiming to explore in the first group of papers insights for innovation on collaboration and trust in reverse logistics. The content analysis strategy was supported by the knowledge exchange theory described in Gravier et al. (2008).

Reverse logistics is hardly dissociated from broader sustainable supply chain management approaches, which make all considerations on collaboration and trust designed for such approaches valuable and valid for reverse logistics. Collaboration and trust concepts in supply chain and in reverse logistics contexts are quite similar, while collaboration/trust is mandatory for managing networks in sustainable approaches and in reverse logistics, as well. Downstream and upstream, the chain disruptive innovation business models may be developed between focal companies and returns system third-party logistics providers, fourth-party logistics providers or end-customers, in a business-to-customer collaboration approach. Several collaboration technologies are listed in three perspectives: knowledge sharing, knowledge generation and knowledge implementation.

This study uses a specific protocol for the systematic literature review, and due to inclusion and exclusion criteria, other protocols can provide different results. The strategy of analysis under the knowledge exchange perspective may give a type of result different from other perspectives.

This research systematizes the existing knowledge on the collaborations and trust, which is a priority basis for reverse logistics, providing insights to researchers and practitioners in the area and identifying an agenda for future studies.

There is a paucity of literature considering horizontal collaboration among grocery retailers, suppliers, and third‐party logistics (3PL) providers. This paper seeks to investigate benefits of and barriers to the use of fourth‐party logistics (4PL) management as a catalyst for horizontal collaboration.

Three suppliers, three logistics service providers (LSPs), and one grocery retailer participated in semi‐structured interviews for this exploratory qualitative study.

Large LSPs can establish 4PL management but the significant investment required to do so is a deterrent. Interviewees believed 4PL would negatively influence the grocery retailer‐supplier dynamic but simultaneously would provide key potential benefits. Retaining supply chain control means more to grocery retailers than cost efficiencies realised through horizontal collaboration.

Fierce competition among major grocery chains means that most are unwilling to participate in studies of their systems, which restricts the research scope.

Some stakeholders want deeper integration into grocery supply networks, and the 4PL model could apply to diverse sectors and circumstances. This study shows that barriers to such integration are created by power plays among lead stakeholders in grocery retailing that inhibit horizontal collaboration regardless of cost or other benefits.

The study investigates an under‐researched aspect of horizontal supply chain collaboration in the highly relevant retail grocery sector: a high volume, mass market industry that requires an enormous logistics infrastructure and highly embedded networks of relationships.

The purpose of this paper is to focuss on customer driven supply chains and what this means for the management of freight transport, a key process in the supply chain as it acts as a physical link between customers and suppliers. It aims to assess whether some of the new collaborative models for transport management are delivering better optimised solutions.

The paper is based on a multi‐dimensional methodological approach, which includes empirical, model building, opinion and archival evidence. Much of the thinking and findings in this paper have been derived from a series of quasi‐delphi discussion sessions with logistics industry experts from three sectors, steel, grocery and construction and experienced academics in the fields of logistics and supply chain management.

The paper sets out to argue that new innovative solutions are emerging for better transport optimisation, that exploit the competitive power of collaboration, both vertically with supply chain partners and horizontally with other logistics service providers (LSPs).

The research was largely focused on the road freight transport industry in the UK and Europe. However, it is felt that similar thinking can be deployed in other settings for alternative transport modes and other geographical regions. From an academic perspective the paper contributes to the notion that supply chain management as well as focussing on vertical coordination and process integration also needs to incorporate the potential considerable power of horizontal collaboration.

In particular it is original in that it highlights how important it is to combine vertical collaboration with horizontal collaboration if better optimised transport solutions are to be achieved. This is of considerable value and interest both to practitioner and academic communities.

The purpose of this paper is to establish criteria for evaluating strategic partners in a network of logistics service providers (LSPs) to show how analytical network process (ANP) can be used to identify the weights of these criteria on a case-specific basis, and to investigate whether the ANP model can be used as a starting point to evaluate strategic partners for other LSP networks.

Based on a literature review of vertical cooperation, the authors develop an overview of criteria for the evaluation of partners in a network of LSPs. The authors then apply ANP at LSP1 to validate the criteria, identify weights for these criteria and to validate model outcomes. Furthermore, the authors investigate whether the ANP model developed for LSP1 can be applied to another LSP with similar characteristics (LSP2). In-depth interviews are used to draw conclusions on the modeling approach and the model outcomes.

The research shows that evaluation criteria for partners in vertical partnerships between shippers and LSPs are applicable to LSP partners in horizontal partnership networks. The ANP model with criteria weights provides a good starting point for LSPs to customize the evaluation framework according to their specific needs or operating environments.

Limited research is available on evaluating LSP partners in horizontal partnerships. To the best of the authors’ knowledge, this paper is the first to bring forward horizontal LSP partner evaluation criteria to develop an ANP model for LSP partner evaluation and to apply this to two cases, and to provide a starting point for evaluating partners in similar horizontal LSP networks.

This paper addresses horizontal supply chain collaboration among autonomous freight carriers in the less-than-truckload industry. The main purpose of the paper is to identify and explain the challenges with joint operational decision-making in this context and investigate the precise role of information technology (IT) therein.

Empirical evidence is gathered by means of exploratory and explanatory case research, with multiple cases at the planning departments of European freight carriers operating in collaborative transportation networks.

Collaborating carriers face fundamental challenges in joint operational planning and control of collaborative transportation, despite the broad availability of state-of-the-art IT. These operational supply chain challenges can be explained by technological differences of the available IT applications, which hinder integration.

Any expectations with regard to state-of-the-art XML or EDI-based IT integration for improved joint operational decision-making in collaborative transportation networks should be considered with care. In particular, the authors' research findings may encourage practitioners to consider new planning and control procedures and develop dedicated IT applications for collaborating freight carriers.

The paper highlights the importance of horizontal supply chain collaboration for small and medium-sized freight carriers in the less-than-truckload industry and conceptualises how collaborative transportation networks are organised. Furthermore, an IT typology is introduced to explain the challenges with joint operational decision-making.