1,721,029 research outputs found
Student geographical mobility and labor market outcomes: evidences from Italy
Full text linkThe aim of this thesis is to discover the association between geographical mobility and labour
markets outcomes of Italian early graduates.
Even if is an argument widely trated in literature, I'll try to investigate the evolution of the
\Brain Drain" process in light of recents event: the nancial crisis of 2007-2008 and the cut back
in higher education.
Migration decisions are closely related to degree of social mobilty in a country, especially where
there are strong interregionals dierences as in Italy where, analyse migration path evolution of
human capital might be very useful to policy makers intent to reduce regional gaps and improve
the \equality of opportunity" level.
Take into account migration endogeneity, the results suggest a positive eect of spatial mobility
on economic performance with dierences according to movement trajectories. However
some limits, due also to the lack of adequate data, indicate that further researchs are necessary
in order to identify a causal relation.
The thesis is strutured as follows: the rst chapter explains push and pull factros related to
migration and the connection with social mobility, wage inequality and regional development.
The chapter two presents an estimation of the return to geographical mobility of early graduates
wages while the third chapter present the estimation of return from geographical mobility in
terms of employment condition using a dataset summarizing information coming from three
dierent sources: Almalaurea, Infostud and Ministry of Labor
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Who performs better under time pressure? Results from a field experiment
No full textWe investigate whether and how time pressure affects performance. We conducted a field experiment in which students from an Italian University are proposed to choose between two exam schemes: a standard scheme without time pressure and an alternative scheme consisting of two written intermediate tests, one of which to be taken under time pressure. Students deciding to sustain the alternative exam are randomly assigned to a "time pressure" and a "no time pressure" group. Students performing under time pressure at the first test perform in absence of time pressure at the second test and vice versa. We find that being exposed to time pressure exerts a negative and statistically significant impact on students' performance. The effect is driven by a strong negative impact on females' performance, while there is no statistically significant effect on males. Both the quantity and quality of females' work is hampered by time pressure. Using data on students' expectations, we also find that the effect produced by time pressure on performance was correctly perceived by students. Female students expect a lower grade when working under time pressure, while males do not. These findings contribute to explain why women tend to shy away from jobs and careers involving time pressure
Impatience and academic performance : less effort and less ambitious goals
No full textUsing data from a sample of Italian undergraduate students, we find a negative relationship between time preferences and academic performance. We also find that impatient students, even those who were pretty sure, at the moment of enrollment, of being able to accomplish their degree within the regular time, are more likely to drop out or to be late in their educational career. Our results do not suffer from reverse causality problems and are robust controlling for a large number of individual characteristics, such as family income, cognitive abilities and risk aversion
Does patience matter in marriage stability? Some evidence from Italy
No full textTime preferences can affect divorce probability by both affecting the quality of the match and affecting the spouses’ reactions to negative shocks. We analyse the relationship between time preferences and divorce decisions using data from the Italian Survey on Household Income and Wealth, which provides a measure of time preferences based on a hypothetical financial situation in which individuals have to decide how much money to give up in order to receive a certain amount of money immediately rather than in one year’s time. By controlling for a number of individual and family characteristics, we find that impatient individuals are more likely to experience divorce. The effect is robust to different specifications of our model and is not affected by reverse causality problems. We also find that the more risk averse individuals are, the less likely they are to experience divorce
LA PREVALENZA DEI LIEVITI STARTER IN ENOLOGIA
No full textIn una fermentazione alcolicasi ha prevalenza delceppo di lievito inoculatosui lieviti indigeni quando ilprodotto ottenuto mostra le caratteristichedi un mosto fermentatoin purezza, cioè senzaaltri lieviti presenti, e i risultatiottenuti sono quindi coerenticon le aspettative. Diversi lavoriscientifici hanno messo in luceche è possibile dimostrare laprevalenza del ceppo inoculato,data dal rapporto numericofra le cellule del ceppo inoculatoe quelle dei lieviti indigenidel most
Risk aversion and field of study choice : the role of individual ability
No full textDoes the choice of field of study depend on individual risk aversion? The direction of the relationship between individual risk attitudes and type of university degree chosen is potentially ambiguous. On the one hand, risk averse individuals may prefer degree courses which allow high returns in the labour market; on the other hand, if these degrees expose students to a higher probability of dropping out, those who are more risk averse may be induced to choose less challenging fields. Using data from a sample of students enrolled at a middle-sized Italian public university in 2009, we find that, controlling for a large number of individual characteristics, more risk averse students are more likely to choose any other field (Humanities, Engineering, and Sciences) rather than Social Sciences. We interpret this result bearing in mind that some of these fields, such as Humanities, involve a reduction in the risk of dropping out, while others (such as Engineering and Sciences) involve a lower risk in the labour market. It also emerges that the effect of risk aversion on degree choice is related to student ability. Risk averse students characterized by high abilities tend to prefer Engineering, while the propensity of risk averse students to enrol in Humanities decreases when ability increases, suggesting that the attention paid to labour market risks and drop-out risk varies according to student skills
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