A Two-Step Approach to Analyze Satisfaction Data

In this paper a two-step procedure based on Nonlinear Principal Component Analysis (NLPCA) and Multilevel models (MLM) for the analysis of satisfaction data is proposed. The basic hypothesis is that observed ordinal variables describe different aspects of a latent continuous variable, which depends on covariates connected with individual and contextual features. NLPCA is used to measure the level of a latent variable and MLM is adopted for detecting individual and environmental determinants of the level. This approach is suggested to analyze users’ satisfaction. In fact, NLPCA is used to create a synthetic continuous measure of satisfaction (first step) and MLM are used to detect the role of external (individual or environmental) variables that can affect the level itself (second step). The proposed two-step procedure is applied to the Eurobarometer survey data about opinion of European citizens on services of general interest (SGI) aiming to evaluate and compare the opinion about SGI in different countries. The focus is on overall level of satisfaction about four major public services: fixed telephone, electricity supply, postal and rail services. The item analyzed, which are named manifest variables, are: access easiness, price, quality, information clarity and contract fairness, as reported in the 2002 Eurobarometer survey. In the first step these variables are used to set up the synthetic indicator (the overall level) of satisfaction and, in the second step, a MLM is used to test the impact of some explanatory variables on this satisfaction.     

Hunger,nutrition, and precipitation: evidence from Ghana and Bangladesh

Population and Environment - Changing precipitation patterns caused by climate change are expected to have major impacts on food security and nutrition in agrarian areas in developing countries....     

Social closure,micro‐class immobility and the intergenerational reproduction of the upper class: a comparative study

This article assesses how processes of social closure enhance intergenerational immobility in the regulated professions and thus promote persistence at the top of the occupational hierarchy. We compare four European countries (GB, Germany, Denmark and Sweden) that differ considerably in their degree of professional regulation and in their broader institutional arrangements. We run log‐linear and logistic regression models on a cumulative dataset based on three large‐scale surveys with detailed and highly comparable information at the level of unit occupations. Our analyses indicate that children of licensed professionals are far more likely to inherit the occupation of their parents and that this stronger micro‐class immobility translates into higher chances of persistence in the upper class. These results support social closure theory and confirm the relevance of a micro‐class approach for the explanation of social fluidity and of its cross‐national variations. Moreover, we find that, when children of professionals do not reproduce the micro‐class of their parents, they still display disproportionate chances of persistence in professional employment. Hence, on the one hand, processes of social closure erect barriers between professions and fuel micro‐class immobility at the top. On the other hand, the cultural proximity of different professional groups drives intense intergenerational exchanges between them. Our analyses indicate that these micro‐ and meso‐class rigidities work as complementary routes to immobility at the top.     

Nonlinear models for ground-level ozone forecasting

One of the main concerns in air pollution is excessive tropospheric ozone concentration. The aim of this work is to develop statistical models giving shortterm forecasts of future ground-level ozone concentrations. Since there are few physical insights about the dynamic relationship between ozone, precursor emissions and/or meteorological factors, a nonparametric and nonlinear approach seems promising in order to specify the forecast models. First, we apply four nonparametric procedures to forecast daily maximum 1-hour and maximum 8-hour averages of ozone concentrations in an urban area. Then, in order to improve the forecast performances, we combine the time series of the forecasts. This idea seems to give encouraging results. This work was supported by a MURST grant. The authors would like to thank two anonymous referees for their helpful comments.     

Smoothing,Decomposing and Forecasting Mortality Rates

European Journal of Population - The Lee–Carter (LC) model represents a landmark paper in mortality forecasting. While having been widely accepted and adopted, the model has some limitations...     

Social Capital or Social Cohesion: What Matters For Subjective Well-Being?

The theoretical analysis of the concepts of social capital and of social cohesion shows that social capital should be considered as a micro concept whereas social cohesion, being a broader concept than social capital, is a more appropriate concept for macro analysis. Therefore, we suggest that data on the individual level should only be used to analyze the relationship between social capital, social cohesion indicators and subjective well-being and that they do not allow commenting on the level of social cohesion in a society. For this last type of analyses aggregated indicators of social cohesion have to be computed which is not the issue of this paper. Our empirical analysis is based on individual data for Luxembourg in 2008. In general, our results suggest that investments in social capital generate monetary returns (increased income) and psychic returns (increased subjective well-being) even in a highly developed and multicultural country like Luxembourg. When we are adding on the micro level variables representing the economic domain of social cohesion following Bernard (1999), then we observe that this domain also has an effect on income and on subjective well-being. Therefore, we recommend including the economic domain in any future analysis using the concept of social cohesion.     

A Recast Framework for Welfare Deservingness Perceptions

Social Indicators Research - Many important societal debates revolve around questions of deservingness, especially when it comes to debates related to inequality and social protection. It is...     

Observed Interactions Indicate Protective Effects of Relationships With Parents for Referred Adolescents

This study examined whether the quality of parent–adolescent interactions moderate the association between stressful life events and internalizing and externalizing problems in referred adolescents (N=101, M age 13.41 years, SD=1.81). Adolescents and their parents reported on psychological problems at the time of referral and 4 years later. At follow‐up parents reported on stressful life events and an interaction task was conducted to observe autonomy and relatedness promoting behaviors. For adolescents exposed to stressful events, levels of internalizing and externalizing problems went up except if observed parent–adolescent interactions were characterized by high autonomy and relatedness. The results implied that autonomy and relatedness protect adolescents against the deleterious effects of stressful life events. These findings build on previous research showing for psychologically vulnerable adolescents that parenting that promotes autonomy while maintaining relatedness is associated with resilience in times of stress.     

A Test of the Economic Strain Model on Adolescents' Prosocial Behaviors

The present study was designed to examine the links between economic strain, parental depression, parent–child connectedness, and adolescents' prosocial behaviors. The sample consisted of 478 participants (M age at Time 1=11.29 years, 51% male) recruited from the community who were mostly of European American descent (69%) and from mostly middle to upper SES families. At Time 1 parents completed measures of their own income and economic stress, depression, and connectedness with their child. At Time 1 adolescents reported on connectedness with both their mother and father. At Time 2 (1 year later) adolescents reported on their own prosocial behavior toward strangers, friends, and family. Structural equation model tests showed that economic strain was related positively to parental depressive symptoms, which in turn predicted lower levels of parent–child connectedness, which in turn positively predicted adolescents' prosocial behaviors. Discussion focuses on the family context of adolescents' positive behavioral outcomes.     

The Efficiency of the Italian Judicial System: A Two Stage Data Envelopment Analysis Approach

Social Indicators Research - During the last two decades there was great attention for improved performance in the public sector. We know how important a good judicial system is: it...