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Università della Svizzera italiana

The irony of networks

Markovic, Josip ; Cristofoli, Daniela (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015ECO002.

By the end of the 1970s, it became evident that hierarchies were not always the most efficient and effective solution for complex problems in increasingly plural and fragmented societies. During the last 40 years governance structures and practices in the public sector have shifted towards new logics that direct the way the public sector is functioning. This dissertation deals with use of ...

Università della Svizzera italiana

Frictions, behavioral biases and active portfolio management

Eisele, Alexander ; Nowak, Eric (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014ECO012.

The three chapters of this thesis contribute to the following research questions: (i) What is the role of agency frictions for the performance of mutual funds? (ii) What is the role of market frictions for the performance of hedge funds? (iii) Do hedge funds profit from the behavioral biases of other market participants? The first chapter of this thesis comprises the article "Are Star Funds...

Università della Svizzera italiana

Experimental evidence of unethical gift reconstruction in consumer moral reasoning

Pizzetti, Marta ; Seele, Peter ; Gibbert, Michael

There are empirical evidences that consumers do not walk the talk. Although they express a preference for ethical products, they often consume indifferently. Nonetheless, we know little about the factors that facilitate unethical consumption. This article uses the experimental method to investigate the unethical consumption in the gifting experience context and the impact of psychological...

Università della Svizzera italiana

Data-based analysis of extreme events : inference, numerics and applications

Kaiser, Olga ; Horenko, Illia (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015INFO002.

The concept of extreme events describes the above average behavior of a process, for instance, heat waves in climate or weather research, earthquakes in geology and financial crashes in economics. It is significant to study the behavior of extremes, in order to reduce their negative impacts. Key objectives include the identification of the appropriate mathematical/statistical model, description...

Università della Svizzera italiana

Second-homeowners’ intention to move : an integrated ordered logit model with latent variable

Sarman, Igor

Second-homes represent a very peculiar reality for the tourism market, particularly in Switzerland in which this segment has a long tradition and represents an important share in the accommodation sector. Very few studies took into account the intention of second-home owners to permanently move to the place (typically representing the destination of leisure trips) where they own their...

Università della Svizzera italiana

HEBE : Highly Engaging eBook Experiences

Colombo, Luca ; Landoni, Monica (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO016.

Despite more and more books are made available in electronic format and technology is increasingly present in children’s everyday life, thus far the potential of the electronic book (eBook) medium has been only partially exploited. With the Highly Engaging eBook Experiences (HEBE) project we studied how to design and evaluate eBooks for children with the goal of making the reading...

Università della Svizzera italiana

Slowness learning for curiosity-driven agents

Kompella, Varun Raj ; Schmidhuber, Jürgen (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO013.

In the absence of external guidance, how can a robot learn to map the many raw pixels of high-dimensional visual inputs to useful action sequences? I study methods that achieve this by making robots self-motivated (curious) to continually build compact representations of sensory inputs that encode different aspects of the changing environment. Previous curiosity-based agents acquired skills by...

Università della Svizzera italiana

Derivation, simulation and validation of poroelastic models in dental biomechanics

Favino, Marco ; Krause, Rolf (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO015.

Poroelasticity and mechanics of growth are playing an increasingly relevant role in biomechanics. This work is a self- contained and holistic presentation of the modeling and simulation of non-linear poroelasticity with and without growth inhomogeneities. Balance laws of poroelasticity are derived in Cartesian coordinates. These allow to write the governing equations in a form that is general...

Università della Svizzera italiana

The effects of roughness on the area of contact and on the elastostatic friction : FEM simulation of micro-scale rough contact and real world applications

Rigazzi, Alessandro Pietro ; Krause, Rolf (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014INFO014.

Roughness is everywhere. Every object, every surface we touch or look at, is rough. Even when it looks smooth and flat, if analyzed at the proper length scale, it will reveal roughness. Thus, macro-scale, micro-scale, and even nano-scale roughness exist. What is even more fascinating, is that most of the rough structures, which can be observed at a given length scale, repeat themselves at...

Università della Svizzera italiana

Domain decomposition preconditioning for the Helmholtz equation : a coarse space based on local Dirichlet-to-Neumann maps

Conen, Lea ; Krause, Rolf (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015INFO001.

In this thesis, we present a two-level domain decomposition method for the iterative solution of the heterogeneous Helmholtz equation. The Helmholtz equation governs wave propagation and scattering phenomena arising in a wide range of engineering applications. Its discretization with piecewise linear finite elements results in typically large, ill-conditioned, indefinite, and non- Hermitian...