Influence maximisation beyond organisational boundaries

We consider the problem of choosing influential members within a social network, in order to disseminate a message as widely as possible. While this so-called problem of influence maximisation has been widely studied, little work considers partially-observable networks, where only part of a network is visible to the decision maker. Yet, this is critical in many applications, where an organisation needs to distribute its message far beyond its boundaries and beyond its usual sphere of influence. In this paper, we show that existing algorithms are not sufficient to handle such scenarios. To address this, we propose a set of novel adaptive algorithms that perform well in partially observable settings, achieving an up to 18% improvement on the non-Adaptive state of the art

Theoretical optimisation of IT/IS investments: A research note

The justification of Information Technology (IT) is inherently fuzzy, both in theory and practice. The reason for this is due to the largely intangible dimensions of IT projects. In view of this, this research note presents the results of on-going research, in the application of Fuzzy Cognitive Mapping (FCM), as a tool to identify complex functional interrelationships associated with the justification of IT. This paper presents a theoretical functional model which describes these relationships, and by using an FCM, further interrelationships are developed in the context of justifying IT projects. A procedure which would address the optimisation of these intangible relationships in the form of a Genetic Algorithm (GA) is proposed as a process for Investment Justification

A revised perspective on the evaluation of IT/IS investments using an evolutionary approach

On-going research into the evaluation of Information Technology (IT) / Information Systems (IS) projects has shown that aerospace and supply chain industries are needing to address the issue of effective project investment in order to gain technological and competitive advantage. The evaluative nature of the justification process requires a mapping of interrelated quantities to be optimised. Earlier work by the authors (Irani and Sharif 1997) has presented a theoretical functional model that describes these relationships in turn. By applying a fuzzy mapping to these variables, the optimisation of intangible relationships in the form of a Genetic Algorithm (GA) is proposed as a method for investment justification. This paper revises and reviews these key concepts and provides a recapitulation of this optimisation problem in terms of long-term strategy options and cost implications. Glossary of terms : DC = Direct Costs, FA = Financial Appraisal, FR = Financial Risks, FUR = Functional Risks, HC = Human Costs, IC = Indirect Costs, IR = Infrastructural Risks, OB = Operational Benefits, OC = Organisational Costs, PB = Project Benefits, PC = Project Costs, RF = Risk Factor, SB = Strategic Benefits, SM = Strategic medium-term benefit, SR = Systemic Risks, TB = Tangible Benefits, TC = Tangible Costs, TL = project lead time, TR = Technological Risks, V= Project Value

Instrumental calculation, cognitive role-playing, or both? Self-perceptions of Seconded National Experts in the European Commission

Most work studying micro-processes of integration - i.e. how agents develop identities and decision-making behaviours within a particular institution - offers explanations based on either instrumental rationality or socialisation. This article proposes a twodimensional framework that allows analysing under which conditions both logics of social action co-exist. Our empirical analysis employs a unique dataset from a 2011 survey of all 1098 currently active Seconded National Experts (SNEs) in the European Commission, and is supportive the model's theoretical predictions. We find that a) instrumental cost-benefit calculation and cognitive role-playing (as semi-reflexive socialisation) often simultaneously influence SNEs' (perceptions of their) behaviour, and b) this joint presence of both logics of social action depends on certain scope conditions (i.e., SNEs' education, length of prior embeddedness and noviceness). --Socialisation,rational action,European Commission,Seconded National Experts,survey

Decision-making in international business

This paper distinguishes three domains of international business theory: the boundaries of the multinational enterprise, the external environment of the enterprise and its internal structure. The central concern of internalisation theory is the boundaries of the firm. Any general theory of international business must analyse the external environment and internal structure as well. Competition dominates the external environment whilst co-operation dominates internal structure. Different models of decision-making are required for each. Different theories of decision-making must therefore be integrated in order to transform internalisation theory into a general theory of international business. This paper examines how this can be done

Corporate Social Responsibility and the Non-commercial Sector

The paper offers a definition of the noncommercial sector (NCS) and outlines its properties in order to provide a comparison between the social responsibilities of businesses and the non-commercial sector. It suggests that assigning different levels of responsibility to the different categories of organisations within the NCS will assist in defining those responsibilities

Advancing the state of the art in the modelling and simulation of information systems evaluation

It is widely accepted that Information Systems Evaluation (ISE) is a powerful and useful technique that can be used to assess IT/IS investments in an a-priori or a-posteriori sense. Traditional approaches to ISE have tended to centre upon financial and management accounting frameworks, seeking to reconcile tangible and intangible costs, benefits, risks and value factors. Such techniques, however, do not provide the IS researcher or practitioner with further insight or appreciation of any inherent and implicit inter-relationships, in the investment justification process. Thus, this paper outlines and discusses via a taxonomy and resulting classification, alternative and complementary approaches that can be applied to ISE from the fields of Artificial Intelligence (AI), Operational Research (OR) and Management Science (MS). The paper subsequently concludes that such approaches can be potentially used by researchers and practitioners in the field, as a basis for carrying out further research in the field of applied ISE

Professional buyers and the value proposition

Lusch (2011) considers Service-Dominant Logic (S-DL) to be an appropriate lens through which to view supply chain research, and suggests it be used to better understand value. The authors, accepting a founding premise of S-DL that value is phenomenologically determined by the recipient, adopt a qualitative methodology to penetrate the inherent complexity and commercial confidentiality of the buyer-seller relationship. In particular the authors make a comparative evaluation as to how the wider, psychological needs of the buyer interact with the effects of the organisational goals of their businesses. The study uses a longitudinal research design, involving web-based diaries and follow-up interviews to develop the empirical understanding of the dominant patterns of buyer value perception that, within the context of the investigation, both challenge extant thinking and informs the debate regarding the approaches to combining value creation and value capture (Skilton, 2014). The explanations offered suggest that exchange value achieves a greater buyer focus than utility value, and acknowledges the relative importance of buyer value perceptions that are not directly aligned with organisational objectives. These findings, it is argued, may cause organisations to reflect on their procurement policies and procedures as they seek to engage with potential suppliers

The role of cooperative and social enterprises: A multifaceted approach for an economic pluralism

he role of cooperative and social enterprises in contemporary market economies has been downplayed and marginalised to date by the dominant economic approaches. This insufficient attention (Kalmi, 2008 su Cambridge Journal of Economics) derives from the limited applicability of the main assumptions of microeconomic to the case of cooperative and social enterprises. We mainly refer to models. the assumption of self-seeking individuals and of profit maximisation as the only possible firm objective. The mismatch between theoretical assumptions and empirical evidence has led to the underestimation of the growth potential, weight and role of cooperative and social enterprises. We maintain that the improvement of the scientific understanding of cooperative and social enterprises requires to enlarge and deepen the assumption of the relevant theoretical models. Individuals cannot be characterised any more as purely self-interested. Instead, the importance of motivational complexity, and the diverse nature of preferences needs to be introduced in the model as suggested by the behavioural approach. Furthermore, firms cannot be interpreted any more in an exclusive way as profit maximizers. They are instead coordination mechanisms of the economic activity, as suggested by the evolutionary approach. To this end they develop specific organisational routines, and their objectives can be diverse, ranging from purely private appropriation, to mutual benefit based on reciprocity, to public benefit aim supported by other-regarding preferences. (Le teorie economiche dominanti, ed in particolare l’approccio ortodosso e quello neo-istituzionalista, hanno sottostimato e marginalizzato il ruolo delle cooperative e delle imprese sociali nei mercati economici contemporanei. L’insufficiente attenzione a queste organizzazioni deriva principalmente dall’impossibilità di applicare ad esse le assunzioni principali della teoria microeconomica ortodossa, ossia la presenza di individui auto-interessati e di organizzazioni che puntino solo alla massimizzazione del profitto. Anche la teoria neo-istituzionalista non riesce a spiegare la presenza e la crescita del ruolo ricoperto da cooperative e imprese sociali. Per questa ragione, il presente paper è volto a dimostrare come, per spiegare il ruolo di cooperative ed imprese sociali da un punto di vista scientifico, i principali modelli teorici economici debbano essere estesi. Innanzitutto, tanto gli individui quanto le istituzioni non possono essere più assunti come soggetti meramente egoistici, ma ne vanno studiate la complessità motivazionale e le strutture di preferenze, così come proposto dalla teoria comportamentale (behavioural economics). Inoltre, le imprese devono essere concepite come meccanismi di coordinamento delle attività economiche, come suggerito dall’approccio evoluzionista, e devono quindi esserne analizzate le specifiche routine organizzative sviluppate al loro interno e gli obiettivi organizzativi, i quali possono variare tra gli interessi di appropriazione privata dei profitti ed obiettivi pro-sociali sostenuti da preferenze altruistiche.Cooperatives, social enterprises, organizational pluralism, economic theories