Abstract
Purpose - The purpose of this paper is to explore the concept of value co-creation in complex value networks with many actors. Electronic health records (EHRs) are innovations that warrant deep study to properly introduce such a complex system. Design/methodology/approach - The paper describes a qualitative study based on Grounded Theory to understand value co-creation from multiple actors' perspectives in a National EHR Service Project: the Portuguese Health Data Platform. Findings - Study results enabled further development of the value co-creation concept in complex environments with multiple actors. More specifically they allowed: operationalizing the value co-creation concept by identifying its factors and outcomes, understanding how value co-creation factors and outcomes are interconnected, and understanding of how value co-creation for each actor depends on his/her own actions and the actions of other actors, in a complex set of interactions and interdependencies. Practical implications - The findings have implications for service managers seeking to understand how actors participating in the network integrate resources and interact to co-create value. The study highlights the need for designing and managing services to co-create value, not only by enabling dyadic interactions between the customer and the service provider, but also by supporting and enabling value co-creation interactions among different actors in the network. Originality/value - This study responds to the need for empirical research on value co-creation in many-to-many contexts and for operationalizing the value co-creation concept.

Abstract
Operational planning at public transport companies is a complex process that usually comprises several phases. In the planning phase, schedules are constructed considering that buses arrive and depart as scheduled. Obviously, several disruptions frequently occur, but their impact on the operating conditions is not easy to estimate. This difficulty arises mostly due to the impossibility of testing different solutions under the same conditions. Indeed, typically, the available data are a result of the current plan, while new proposed solutions have not produced real data yet. Along this chapter we discuss the assessment of the impact of changes in the operational planning on the real operating conditions, before their occurrence. We present a framework for such assessment, which includes two components: the impact on costs, and the impact on revenues. We believe that this framework will be useful in future works on operational planning of public transport companies. © Springer International Publishing Switzerland 2014.

Abstract
In this paper, we presented a probabilistic framework to predict Bus Bunching (BB) occurrences in real-time. It uses both historical and real-time data to approximate the headway distributions on the further stops of a given route by employing both offline and online supervised learning techniques. Such approximations are incrementally calculated by reusing the latest prediction residuals to update the further ones. These update rules extend the Perceptron's delta rule by assuming an adaptive beta value based on the current context. These distributions are then used to compute the likelihood of forming a bus platoon on a further stop - which may trigger an threshold-based BB alarm. This framework was evaluated using real-world data about the trips of 3 bus lines throughout an year running on the city of Porto, Portugal. The results are promising.

Abstract
The organizations ability to manage corporate environmental performance is emerging as a strategic issue for companies. Environmental decision-making requires an explicit methodology in which it must be possible to articulate the involvement of various stakeholders, incorporate multi-disciplinary knowledge, and integrate criteria involving trade-offs in order to deal with different opinions and heterogeneous factors. The choice of sustainable options for the company and the creation of commitments among stakeholders are a must for businesses. The main motivation of this paper is to present results from the initial steps of the development of a methodology to support decision-making of corporate environmental strategies. Illustrations from an ongoing case study are presented. (C) 2014 The Authors. Published by Elsevier B.V.

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