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Università della Svizzera italiana

Essays in asset allocation

Leirvik, Thomas ; Trojani, Fabio (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014ECO003.

This thesis consists of two chapters. In the first chapter, I analyze the optimal allocation of wealth to cash, bonds, and stocks when the interest rate is stochastic and the stock index has a time-varying mean. I find that, under certain economic conditions, the investor may optimally increase investments in stocks and bonds at the same time, which is due to the dynamic trading policies and...

Università della Svizzera italiana

Fertility decisions and pension reforms : evidence from natural experiments in Italy

Billari, Francesco C. ; Galasso, Vincenzo

The emergence of old-age social security has been linked to general fertility decline, and in recent years pension reforms have emerged as a response to the challenges of population ageing, in turn partially a consequence of fertility decline. Understanding the link between social security and low fertility is therefore very important. In this paper we analyse the link between fertility and...

Università della Svizzera italiana

Relationship orientation in social media : construct, measurement and link to company performance

Fudurić, Morana ; Snehota, Ivan (Dir.) ; Mandelli, Andreina (Codir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014COM002.

Today, companies operate in a dynamic environment, characterized by fast technological development, vast competition and globalization as well as constant changes in the market which has led to the growing awareness of the importance of developing long term, profitable relationships with various stakeholders or partners. Combined with the emergence of social media during the 1990s that...

Università della Svizzera italiana

Craig Interpolation and proof manipulation : Theory and applications to model checking

Rollini, Simone Fulvio ; Sharygina, Natasha (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2013 ; 2013INFO006.

Model checking is one of the most appreciated methods for automated formal verification of software and hardware systems. The main challenge in model checking, i.e. scalability to complex systems of extremely large size, has been successfully addressed by means of symbolic techniques, which rely on an efficient representation and manipulation of the systems based on first order logic....

Università della Svizzera italiana

An empirical study of information flows and conflicts of interests in brokerage business and mutual fund industry

Nefedova, Tamara ; Degeorge, François (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014ECO002.

In my PhD thesis I unveil somewhat controversial trading practices and conflicts of interests in mutual fund industry and brokerage business. I aim to provide empirical evidence of premature information diffusion in capital markets. The novel data and identification approach of the study allows answering the questions so far not answered in the literature. In Chapter I of my thesis, I study a...

Università della Svizzera italiana

Investigating children’s Why-questions : a study comparing argumentative and explanatory function

Bova, Antonio ; Arcidiacono, Francesco

In: Discourse studies, 2013, vol. 15, no. 6, p. 713-734

Questions represent a crucial tool of interaction between parents and children from a very early age. This study aims to investigate which function – argumentative or explanatory – most characterizes Why-questions asked by children to their parents in a natural setting such as mealtimes at home. Why- questions asked by 13 children – eight girls and five boys aged between three and seven...

Università della Svizzera italiana

“You must eat the salad because it is nutritious” : argumentative strategies adopted by parents and children in food-related discussions at mealtimes

Bova, Antonio ; Arcidiacono, Francesco

In: Appetite, 2014, vol. 73, p. 81-94

At mealtimes, the evaluation of the appropriate (or not appropriate) behavior concerning the food is often assumed as a topic of discourse. The aim of this study is to single out the argumentative strategies used by parents with their children and by children with their parents in order to convince the other party to eat or not to eat a certain food. Within a data corpus constituted by 30...

Università della Svizzera italiana

Types of arguments in parents-children discussions : an argumentative analysis

Bova, Antonio ; Arcidiacono, Francesco

In: Rivista di Psicolinguistica Applicata/Journal of Applied Psycholinguistics, 2014, vol. 14, no. 1, p. 43-66

This study aims to single out the argumentative strategies most frequently used by parents to convince their children to accept their rules and prescriptions at mealtimes. The results of thestudy show that parents mostly put forward arguments based on the quality and quantity of food to persuade their childern to eat. Less frequently, the parents put forward other types of arguments such as...

Università della Svizzera italiana

Essays on liquidity and asset pricing

Vovchak, Volodymyr ; Franzoni, Francesco (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2014 ; 2014ECO001.

The thesis is comprised of two parts. First part is devoted to liquidity of the stock market and its interaction with holding horizon. I start from investigating relative importance of liquidity level and liquidity risk. I find that liquidity level is more important for explaining stock returns. I notice that liquidity risk gains some explanatory power during recent decade, and it seems to...

Università della Svizzera italiana

The relationship between costs and quality in nonprofit nursing homes

Di Giorgio, Laura ; Filippini, Massimo ; Masiero, Giuliano

We investigate the relationship between costs and quality in nonprofit nursing homes, a key issue in the present context of cost containment measures. In accordance with the economic theory of production, we estimate a three-inputs total cost function for nursing home services using data from 45 nursing homes in Switzerland between 2006 and 2010. Quality is measured by means of clinical...