Integrating sustainability into strategic decision-making: A fuzzy AHP method for the selection of relevant sustainability issues

Calabrese, A.a,Costa, R.a, Levialdi, N.a, Menichini,T.b
aDepartment of Enterprise Engineering, University of Rome Tor Vergata, via del Politecnico 1, Roma, Italy
bIndustrial and Mechanical Engineering, University of Rome “Niccolò Cusano”, Italy


Technological Forecasting and Social Change
Volume 139, 2019, Pages 155-168

Abstract
The United Nations aspirational agenda for sustainable development calls for the shared efforts of governments, business sector, society and stakeholders to promote prosperity while protecting the planet. In the business perspective, the joint pursuit of both durable competitive advantages and long-term benefits for society are not just the result of companies’ reactions to goals of institutions or demands of stakeholders. Rather, they depend on a holistic integration of sustainability in companies’ strategic decision-making.
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An integrated sustainable and profitable approach of energy efficiency in heritage buildings

Annibaldi, V.a, Cucchiella, F.a , De Berardinis, P.b Gastaldi, M.a, Rotilio, M.b
aDepartment of Industrial and Information Engineering and Economics, University of L’Aquila, via Giovanni Gronchi 18, Zona Industriale Pile, L’Aquila, Italy
bDepartment of Civil, Construction-Architectural and Environmental Engineering, University of L’Aquila, Via G. Gronchi N. 18, L’Aquila, Italy


Journal of Cleaner Production
Volume 251, 1 April 2020, Article number 119516

Abstract
The aim of Sustainable Development Goal 7 is to ensure access to affordable, reliable, sustainable and modern energy for all. Increased energy efficiency is particularly important in the construction industry because urban agglomerations currently consume up to 80% of global energy, 40% of which is attributable to buildings. In countries like Italy however, where historical buildings constitute a significant part of the building patrimony, improving energy efficiency is not always straightforward as interventions must take into account the historical materials used as well as the context of the construction. 
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A run-based optimal strategy search method in intelligent stochastic transit networks

Nuzzolo, A.,Comi, A.
Dipartimento di Ingegneria Dell’Impresa, Università di Roma Tor Vergata, Via del Politecnico, 1, Rome, Italy


2019 IEEE Intelligent Transportation Systems Conference, ITSC 2019
October 2019, Article number 8917476, Pages 2633-2638

Abstract
This paper deals with the search for a dynamic run-based optimal travel strategy, to be supplied through mobile devices to travelers on a stochastic multi-service transit network, which includes a forecasting system of bus arrival times at stops. The paper first analyses some existing run-based optimal strategy search methods, then a new procedure is proposed and applied. Leggi il seguito

Location of differentiated waste collection centers with user cooperation: a bilevel optimization approach

Caramia, M.,Giordani, S.
Department of Enterprise Engineering, University of Rome Tor Vergata, via del Politecnico 1, Roma, Italy


Optimization Letters
Volume 14, 2020, Pages 85-99

Abstract
We focus on the problem of locating differentiated waste collection centers: a municipal firm acts with the goal of locating and installing proper capacities to such facilities with the goal of defining a cooperative behaviour of the users of an urban area, possibly giving economic incentives to the latter in the case they decide to follow a predefined planning on waste recycling.
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The competition among mobile network operators in the telecommunication supply chain

Livio Cricelli, Michele Grimaldi, Levialdi Ghiron

International Journal of Production Economics

Abstract:  In the mobile telecommunication sector, the high competitiveness has increased the complexity of strategic interactions among operators. As the vertical integration has become anything but a choice and not a compelling technical solution, the contest takes place at different levels of the components of the operator value chain: the network infrastructure, the service development and supply, and the relationship with consumers.

Mobile virtual network operators act as retailers and concentrate on the last segment of the value chain by establishing commercial agreements with hosting network operators, which act as manufacturers, to get access to radio communications infrastructure. Productive processes of mobile services offered by operators are different and this difference is imperceptible to customers. Processes difference mainly consists in the infrastructural diversity of the operators and implies different consequences on each network service element.

A model has been defined to analyze the consequences of such diversity in the competition among HNOs, MNOs, and MVNOs by focusing the attention on the characteristics of the call path, in dependence of the types of operators. In fact, many variables interact to define the call path, such as marginal costs and revenues, infrastructural investments, and interconnection charges among operators. The analysis of the results, obtained by the model, gives information on variations of retail prices, market shares, and profit allotment, to adopt the proper strategies. In particular, the model results shed light on how certain MVNOs should enter the markets and adopt a collaborative strategy with HNOs. The model owns the capability of being applied to different contexts, thus representing for the regulator a potential instrument of relevant usefulness.

The power of the arts in business

Carlucci, D. , Schiuma, G.

Journal of Business Research

Abstract : This paper aims to define the position of the role of the arts for management in today’s business landscape. Therefore, it addresses why the arts are relevant in the new business age and how they can drive the management innovation.

It discusses why the arts, from an instrumental and utilitarian point of view, matter in business and defines the conceptual background explaining how the arts can be adopted by organizations for management purposes. The focus is not on a specific art form, but on the arts, in general, considering the arts as a management resource and source for organizational development. © 2017 Elsevier Inc.

A ‘power law’ based method to reduce size-related bias in indicators of knowledge performance: An application to university research assessment

Armando Calabrese, Guendalina Capece, Roberta Costa, Francesca Di Pillo, Stefania Giuffrida

Journal of Informetrics

Abstract: The knowledge production provided by universities is essential to sustaining a country’s long-term economic growth and international competitiveness. Many nations are thus driving to create sustainable and effective funding environments. The evaluation of university knowledge, productivity and research quality becomes critical, with ever increasing share of public funding allocated on the basis of research assessment exercises. Nevertheless, the existing methods to assess the universities’ knowledge production are often affected by limits and biases, extensively discussed in the scientific literature.

In this paper we study how to reduce the effect of size-related bias due to university size on the indicators of knowledge performance used in evaluation exercises. We propose an innovative utilization of the scale-free property of the power laws as a scaling relationship, to normalize research productivity indicators, and provide results independent by the university size. Our method has evident policy implications and gives a contribution for the future design of assessment exercises.

A chance constrained optimization approach for resource unconstrained project scheduling with uncertainty in activity execution intensity

Lucio Bianco, Massimiliano Caramia, Stefano Giordani

Computers & Industrial Engineering

Abstract: We study the problem of scheduling project activities with precedence constraints and unlimited resources. The latter problem, with the objective of minimizing the completion time of the project and deterministic activity durations, is known to be polynomially solvable. In the case of stochastic durations, the objective becomes to determine the project makespan distribution which is a #P complete problem. The most common technique used in this case is PERT. However, it is known that PERT tends to underestimate the expected makespan of the project. In our work, we try to overcome this shortcoming by considering a stochastic formulation of the problem, exploiting the activity execution intensity as a stochastic variable, and a chance constrained optimization approach. The main hypotheses under which our model works are essentially two: one is to have a sufficiently large time horizon for the project and the second, differently to what happens for the durations of the activities in the PERT model, is to assume a Beta probability density function for the activity execution intensity variables. The first hypothesis appears to be realistic since, when time horizon is large, stochastic factors tend to come into play in every decision problems; the second hypothesis, is realistic as well, since a minimum and a maximum value exist for the stochastic variables used in our model. Experimental results and a comparison with the PERT model and a Monte Carlo simulation are presented.

The measurement of degree of servitization: literature review and recommendations

Armando Calabrese, Nathan Levialdi Ghiron, Luigi Tibuzi

Tim Baines Aston Business School, Birmingham, UK

Abstract: This study reviews systematically the literature on the measurement of the firm-level degree of servitization. The results show that servitization measures are inconsistent across studies, even among those investigating similar research questions, and that a theoretical reference for their appropriate use is still missing. Focusing on these shortcomings, this study conceptualizes the firm-level servitization degree in three classes, i.e. ‘extension’, ‘infusion’, and ‘orientation’. Hence, measures to operationalize each class are derived from the literature review and subsequently discussed with a panel of experts. In addition, servitization measurement is further conceptualized other than firm-level degree, as a measurement at the regional, product, and individual employee levels, other than at the firm level. This study is the first to provide a systematic review on the topic and to develop a general conceptualization and operationalization of servitization measurement. Furthermore, this research is the first to employ an international standard classification of economic activities as a basis to identify objectively firms’ service offerings. This research supports both scholars and practitioners because it brings consistency across studies and applications, thus fostering assessment and comparability of servitization experiences.

The effects of gender, age and academic rank on research diversification

Abramo, G., D’Angelo, C.A., Di Costa, F.
Scientometrics
Abstract :In this work we analyze the combined effects of gender, age and academic rank on the propensity of individual scholars to diversify their scientific activity. The aspect of research diversification is measured along three main dimensions, namely its extent and intensity and the cognitive relatedness of the fields of diversification.
We apply two regression models to the dataset of scientific output of all Italian professors in the sciences over the period 2004–2008. The aim is to understand how personal and organizational traits can influence individual behaviors in terms of research diversification. Among other considerations, our findings urge caution in identifying research diversification as a co-determinant of the gender productivity gap between males and females.
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