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Università della Svizzera italiana

Argumentative dialogues in mergers & acquisitions : evidence from investors and analysts conference calls

Palmieri, Rudi

In: L’analisi linguistica e letteraria, 2008, vol. 2, p. 859-872

This paper considers a specific communicative activity type of the financial context – analysts and investors conference calls – from an argumentative perspective. On the basis of a concrete example bound to an important and very recent merger story (the failed attempt to combine Barclays and ABN AMRO banks), it is shown that conference calls, apparently conceived for ...

Università della Svizzera italiana

Market partitioning, organizational identity and geography : Empirical and simulation evidence in the German electricity market after deregulation

Liu, Min ; Larsen, Erik (Dir.) ; Wezel, Filippo Carlo (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2011 ; 2011ECO003.

This dissertation develops and tests theories on identity-based resource partitioning in the context of the German electricity market after deregulation in 1998. I apply insights from the recent theoretical development on organizational identity and pay special attention to the roles of audience heterogeneity which is observed through the lens of geography. Based on both theoretical arguments...

Università della Svizzera italiana

Contributions to robustness theory

La Vecchia, Davide ; Ronchetti, Elvezio (Dir.) ; Trojani, Fabio (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2011 ; 2011ECO004.

The goal of this PhD Thesis is the definition of new robust estimators, thereby extending the available theory and exploring new directions for applications in finance. The Thesis contains three papers, which analyze three different types of estimators: M-, Minimum Distance- and R- estimators. The focus is manly of their infinitesimal robustness, but global robustness properties are also...

Università della Svizzera italiana

Communication processes in eLearning design and development : an interaction analysis approach

Rapanta, Chrysi ; Cantoni, Lorenzo (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2011.

The present dissertation has as a main goal to identify and describe relevant design and communication processes taking place during co-design meetings, in a way suitable to inform practice in similar settings in the field of eLearning design and development. The need for such a research emerges from the inadequacy of prescriptive models that can guide professionals in their communication...

Università della Svizzera italiana

Scalable abstractions for efficient security checks

Tsitovich, Aliaksei ; Sharygina, Natasha (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2011 ; 2011INFO008.

Following the industrial demand to address the problem of software correctness, the computer science research community puts a lot of efforts into development of scalable and precise formal methods that are applicable to industrial-size programs. Unfortunately, most of software verification techniques suffer from the effect of combinatorial blowup also known as a "state-space explosion", i.e.,...

Università della Svizzera italiana

Agent communication and artificial institutions

Fornara, Nicoletta ; Viganò, Francesco ; Colombetti, Marco

In: Autonomous agents and multi-agent systems, 2007, vol. 14, no. 2, p. 121-142

In this paper we propose an application-independent model for the definition of artificial institutions that can be used to define open multi-agent systems. Such a model of institutional reality makes us able also to define an objective and external semantics of a commitment-based Agent Communication Language (ACL). In particular we propose to regard an ACL as a set of conventions to act on a...

Università della Svizzera italiana

Representation and monitoring of commitments and norms using OWL

Fornara, Nicoletta ; Colombetti, Marco

In: AI communications, 2010, vol. 23, no. 4, p. 341-356

Monitoring the temporal evolution of obligations and prohibitions is a crucial aspect in the design of open interaction systems. In this paper we regard such obligations and prohibitions as cases of social commitment with starting points and deadlines, and propose to model them in OWL, the logical language recommended by the W3C for SemanticWeb applications. In particular we propose an...

Università della Svizzera italiana

A commitment-based approach to agent communication

Fornara, Nicoletta ; Colombetti, Marco

In: Applied artificial intelligence, 2004/18/9/10/853-866

In this paper we propose an operational method for the definition of the semantics of Agent Communication Languages based on the notion of social commitment. Our proposal is suitable for open interaction frameworks where agents, designed by independent constructors, dynamically enter and leave different interaction systems. In this type of environments it is crucial to define a standard and...

Università della Svizzera italiana

Using a choice experiment to estimate the benefits of a reduction of externalities in urban areas with special focus on electrosmog

Banfi, Silvia ; Filippini, Massimo ; Horehájováa, Andrea

In: Applied economics, 2012, vol. 44, no. 3, p. 387-397

Traffic noise, air pollution and electromagnetic pollution (i.e. non-ionizing radiation, also called electrosmog) are typical negative local externalities in urban areas. They are side-effects of human and economic activity (e.g. road transport, telecommunication) and they affect individuals’ well-being negatively without compensation. In recent years, the increased number of mobile phone...

Università della Svizzera italiana

Electoral Competition as a Determinant of Fiscal Decentralization

Jametti, Mario ; Joanis, Marcelin

Fiscal decentralization is high on the agenda in policy fora. This paper empirically investigates the underlying causes of fiscal decentralization, based on the predictions of a simple political economy model. We argue that the likeliness that a central government engages in devolution of powers depends in important ways on the political forces that it faces, the theory’'s main insight...