Individual adoption of convergent mobile phone in Italy

The present study integrates the technology acceptance and convergence streams of research to develop and test a model of individual adoption of convergent mobile technologies. Adopting structural equation modelling, we hypothesize that relative advantage, effort expectancy, social influence and facilitating conditions affect directly individual attitude and, indirectly the intention to use convergent mobile technologies. The model explains a highly significant 53.2% of the variance for individual attitude, while individual attitude accounts for 33.9% of the variance in behavioral intention. Authors are listed alphabetically.     

Cohesion and Enmeshment Revisited: Differentiation,Identity, and Well‐Being in Two European Cultures

We examined the nature and implications of family differentiation among adolescents facing a life transition in 2 European countries with differing family cultures. One hundred and twenty‐four Italian and 109 U.K. adolescents completed measures of family differentiation (cohesion and enmeshment), identity threat (perception of threat to the self associated with finishing school), life satisfaction, depressive symptoms, and anxiety. Confirmatory factor analyses showed that cohesion and enmeshment were distinguishable in both countries, orthogonal in the U.K. but positively correlated in Italy. Family cohesion was associated with better psychological well‐being in both countries; enmeshment was associated with poorer psychological well‐being in the U.K. but not in Italy. Structural equation models showed that effects on well‐being were fully mediated by identity threat in both cultures.     

A two-phase optimization method for a multiobjective vehicle relocation problem in electric carsharing systems

A spanning subgraph F of a graph G is called an even factor of G if each vertex of F has even degree at least 2 in F. It was conjectured that if a graph G has an even factor, then it has an even factor F with \(|E(F)|\ge {4\over 7}(|E(G)| + 1)+ {2\over 7}|V_2(G)|\), where \(V_2(G)\) is the set of vertices of degree 2 in G. We note that the conjecture is false if G is a triangle. In this paper, we confirm the conjecture for all graphs on at least 4 vertices, and moreover, we prove that if \(|E(H)|\le {4\over 7}(|E(G)| + 1)+ {2\over 7}|V_2(G)|\) for every even factor H of G, then every maximum even factor of G is a 2-factor consisting of even circuits.     

Unintended effects of poverty programmes on childbearing in less developed countries: experimental evidence from Latin America

Because conditional cash transfer (CCT) programmes (which make payments to poor households, conditional on their behaviour) potentially affect both household resource levels and parental preferences for quality vs. quantity of children, they may have unintended consequences for fertility. We use panel data from experimental CCT programmes in three Latin American countries to assess the unintended impact of these programmes on childbearing. Our findings, based on difference-in-difference models, show that the programme in Honduras, which inadvertently created large incentives for childbearing, may have raised fertility by between 2 and 4 percentage points. The CCT programmes in the two other countries, Mexico and Nicaragua, did not have the same unintended incentives for childbearing, and in these countries we found no net impact on fertility. Subsequent analysis examined several potential mechanisms by which fertility in Honduras may have been raised but was not able to identify a primary mechanism with the available data.     

Impact of Adolescents' Filial Self‐Efficacy on Quality of Family Functioning and Satisfaction

In this prospective study, we tested a structural model in which adolescents' perceived self‐efficacy to manage parental relationships affected their satisfaction with family life both directly, and indirectly, through its impact on family practices. Findings based on 380 Italian adolescents showed that perceived filial self‐efficacy was linked directly and indirectly to satisfaction with family life, and that these relations held both concurrently and longitudinally. In particular, the greater adolescents perceived their self‐efficacy, the more they reported open communication with their parents, the more accepting they were of their parents' monitoring of their own activities outside the home and the less inclined they were to get into escalative discord over disagreements. Regardless of whether perceived filial self‐efficacy was placed in the conceptual structure as a contributor to the quality of family interactions or as a partial product of family functioning, it consistently predicted satisfaction with family life.     

Unintended effects of poverty programmes on childbearing in less developed countries: Experimental evidence from Latin America

Because conditional cash transfer (CCT) programmes (which make payments to poor households, conditional on their behaviour) potentially affect both household resource levels and parental preferences for quality vs. quantity of children, they may have unintended consequences for fertility. We use panel data from experimental CCT programmes in three Latin American countries to assess the unintended impact of these programmes on childbearing. Our findings, based on difference-in-difference models, show that the programme in Honduras, which inadvertently created large incentives for childbearing, may have raised fertility by between 2 and 4 percentage points. The CCT programmes in the two other countries, Mexico and Nicaragua, did not have the same unintended incentives for childbearing, and in these countries we found no net impact on fertility. Subsequent analysis examined several potential mechanisms by which fertility in Honduras may have been raised but was not able to identify a primary mechanism with the available data.