Scegliere la ricerca è una sfida che può essere compensata solo dallameraviglia di sapere che c’è ancora qualcosa di nuovo da cercare. Il nostroimpegno è per un ambiente scientifico internazionale, fertile e libero dacondizionamenti. Le nostre ricerche sono focalizzate principalmente nell’ambitodell’ingegneria gestionale, delle scienze organizzative, del management, e dell’economia.
|Il Coordinatore del Dottorato di Ricerca in Ingegneria dell’Impresa Nathan Levialdi Ghiron|
Il Dottorato di Ricerca in Ingegneria dell’Impresa fornisce le competenze necessarie per esercitare attività di ricerca di alta qualificazione presso soggetti pubblici e privati, nonché competenze qualificanti anche nell’esercizio delle libere professioni, contribuendo alla realizzazione dello Spazio Europeo dell’Alta Formazione e dello Spazio Europeo della Ricerca. In accordo con le linee di indirizzo della Scuola di Dottorato dell’Associazione italiana Ingegneria Gestionale (AiIG), il programma si sviluppa secondo quattro cardini fondamentali:
Livio Cricelli, Michele Grimaldi, Levialdi Ghiron
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.
Carlucci, D. , Schiuma, G.
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.
Armando Calabrese, Guendalina Capece, Roberta Costa, Francesca Di Pillo, Stefania Giuffrida
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.
Lucio Bianco, Massimiliano Caramia, Stefano Giordani
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.
Il campus di Tor Vergata occupa un territorio di 600 ettari all’interno del comune di Roma, la città a più alta concentrazione di beni storici e architettonici.