Meeting World Growing Energy Needs the Role of Nuclear Power

The 21st century will face an increased population with limited resources. The latest projection of the United Nations estimates an additional 1.65 billion people by 2030. The rising population should access to all modern services and welfare. Resources demand is expected to increase dramatically in the 21st century, especially in developing countries, where population growth is fast and billions of people nowadays have no access to these services. If no new, strong energy-policy interventions occur, the world’s energy needs will be well over 50% higher in 2030 than today. Fossil fuels will continue to dominate world fuel mix (IEA, International Energy Agency, in World energy outlook 2007, Paris, 2008). The consequent growth in energy-related emissions of carbon-dioxide is noteworthy. The challenge is to reach an energy system allowing this growth and assuring security, reliability, and environmental protection. With worldwide demand for energy expected to more than double by 2030, the need for safe, clean, reliable energy is essential. Much of greenhouse gasses emissions is due to the energy sector. Energy supply, generation and use (and its environmental consequences) is definitely the issue of our times and the coming. All technologies may be complimentary for fitting the demand. Known means exist to cut energy demand and change the fuel mix. In this paper, we will introduce the energy issue and show which role nuclear energy could have in reducing emissions.     

A multilevel model with autoregressive components for the analysis of tribal art prices

In this paper, we introduce a multilevel model specification with time-series components for the analysis of prices of artworks sold at auctions. Since auction data do not constitute a panel or a time series but are composed of repeated cross-sections, they require a specification with items at the first level nested in time-points. Our approach combines the flexibility of mixed effect models together with the predicting performance of time series as it allows to model the time dynamics directly. Model estimation is obtained by means of maximum likelihood through the expectation–maximization algorithm. The model is motivated by the analysis of the first database ethnic artworks sold in the most important auctions worldwide. The results show that the proposed specification improves considerably over classical proposals both in terms of fit and prediction.     

Spouses’ earnings association and inequality: A non-linear perspective

We analyze the association between spouses’ earnings taking account of non-linearities along both spouses’ distribution of earnings. We also document the non-linearity of the relationships between earnings and labor force participation, earnings and couple formation, and earnings and number of children. Using simulations, we then analyze how changes in spouses’ rank-dependence structure, labor force participation and couple formation contribute to the upsurge in inequality in the U.S between 1967 and 2018. We find that an increased tendency towards positive sorting contributed substantially to the rise in inequality only among dual-earner couples, while it contributed little to overall inequality across households. Temporal and distributional heterogeneity are important, as earnings association had a more substantial role in the bottom of the earnings distribution and in recent years. The decline in couple formation contributed substantially to the rise in inequality, while the increase in female labor force participation and the fertility decline had equalizing effects.

     

Issues Related to Sports Gambling

This paper looks at various issues that are of interest to the sports gambler. First, an expression is obtained for the distribution of the final bankroll using fixed wagers with a specified initial bankroll. Second, fixed percentage wagers are considered where the Kelly method is extended to the case of simultaneous bets placed at various odds; a computational algorithm is presented to obtain the Kelly fractions. Finally, the paper considers the problem of determining whether a gambling system is profitable based on the historical results of bets placed at various odds.     

Exploring the relation between maternal mind‐mindedness and children’s symbolic play: A longitudinal study from 6 to 18 months

Relations between mothers’ mind‐mindedness (appropriate attunement to their infants’ internal states) at 6 and 12 months and infants’ early symbolic play during infant–mother pretense at 12 and 18 months were investigated in a sample of 43 mothers and infants. Mothers’ appropriate mind‐related comments were associated with average level, length, complexity, and maturity level of symbolic play. Specific sub‐categories of appropriate mind‐related comments were identified as independent predictors of children's symbolic play. Appropriate comments about desires and cognitions at 6 months were associated with average level and length of episodes, as well as with maturity level of symbolic play at 12 months. Longitudinal stability in the appropriateness and content of mothers’ mind‐related comments was also investigated. The results are discussed in terms of the proposal that attunement to specific types of internal state should vary as a function of infant age in order to index mind‐mindedness.     

Scoring rule voting games and dominance solvability

This article studies the dominance solvability (by iterated deletion of weakly dominated strategies) of general scoring rule voting games when there are three alternatives. The scoring rules we study include Plurality rule, Approval voting, Borda rule, and Relative Utilitarianism. We provide sufficient conditions for dominance solvability of general scoring rule voting games. The sufficient conditions that we provide for dominance solvability are in terms of one statistic of the game: sufficient agreement on the best alternative or on the worst alternative. We also show that the solutions coincide with the set of Condorcet Winners whenever the sufficient conditions for dominance solvability are satisfied. Approval Voting performs the best in terms of our criteria.     

Improving the measurement of child welfare in the context of intra-household inequality

This study aims to illustrate how to improve the evaluation of child economic well-being and child poverty using the collective approach. International organisations such as the World Bank, OECD and UNICEF have made important efforts in recent years to produce reliable data and to measure poverty according to the most relevant items of household consumption baskets. However, when measuring poverty, it is common practice to assume either that resources are distributed equally within the household or that there are fixed equivalence scales (for example, a child can be counted as 0.5 adults). The methodology based on collective models of consumption overcomes this rigidity by allowing inequality within each household to be taken into account. The method assumes that each household devotes a fraction of resources to children, which can be estimated using the observed expenditure on child-exclusive goods. An example of how child poverty measures can be inaccurately estimated is illustrated through the case of young children in Albania.     

Drawing the Line: The Development of a Comprehensive Assessment of Infidelity Judgments

Infidelity is a leading cause of relationship discord and dissolution, and couples generally report expectations to maintain monogamy. However, a majority of men and women report engaging in some form of infidelity at least once in their lives. Research assessing judgments of the behaviors that constitute infidelity is lacking. The three studies reported here advanced the literature by developing and validating the Definitions of Infidelity Questionnaire (DIQ), a comprehensive measure examining infidelity judgments. Exploratory and confirmatory factor analyses indicated four factors to the scale: sexual/explicit behaviors, technology/online behaviors, emotional/affectionate behaviors, and solitary behaviors. Investigation of the psychometric properties demonstrated the DIQ to be reliable and valid. Participants agreed that sexual/explicit behaviors comprised infidelity to the largest extent, whereas other types of behaviors (technology/online behaviors, emotional/affectionate behaviors, and solitary behaviors) were judged as comprising infidelity to a lesser extent. Men reported more permissive judgments than did women. This study provides insights regarding operationalizing infidelity and identifying areas of ambiguity and consensus. Implications of the findings for educators and practitioners working with individuals in intimate relationships are discussed.     

The ‘importance of staying put’: third country nationals’ limited intra-EU mobility rights

The cautious approach of European Legislators towards the integration of non-EU third country nationals (TCNs), mirrored in the provisions of Long-Term Residence Directive 2003/109/EC, has brought about the creation of ‘spatial temporal waiting zones’. Migrants are confined in both place and time before being able to access the (as of yet, very limited) mobility rights conferred upon them by the Directive. Restricted mobility rights for TCNs can seriously impinge on the economic growth of the EU. This paper reveals three ‘faults’ of the current system. First, we show how TCNs already evade ‘temporal borders’ by moving across geographical ones to take up employment before being entitled to do so under the provisions of the Directive. Next, we show how formal integration in one member state (MS), paradoxically, opens the door to another MS and, third, how a second MS fights off these near-EU citizens. Finally, we observe the importance of taking the phenomenon of spatial and temporal waiting zones into account, not only when structuring intra-EU mobility policies for TCNs but also when addressing the issue of the (labour market) integration of recent arrivals: soon they too will become European long-term residents.     

Life satisfaction linked to different independence-from-parents conditions in Italian emerging adults

ABSTRACT

The transition toward adulthood in Italy lasts longer than in other countries with respect to living with the family of origin, starting work, and gaining economic independence. This study aimed to analyse the transition to adulthood in Italian youths by exploring these developmental tasks. The first aim was to analyse gender and age differences in these developmental tasks. Given that these tasks are not necessarily achieved at the same time, the second aim was to establish if it might be possible to identify different clusters of individuals according to their residential, economic and employment conditions. The third aim was to explore life satisfaction in different clusters. 191 Italian emerging adults (65 males) aged 20–30 years (M?=?24.40) completed the Satisfaction with Life Scale and a specific questionnaire assessing residential independence, economic autonomy, and job stability. Results showed no gender differences in the three developmental tasks. However, older participants reported a higher level of independence. Cluster analysis identified three different groups: ‘totally dependent’, ‘partially independent’ and ‘totally independent’ from parental family, differently composed in terms of partnering. These groups do not differ in life satisfaction levels. Results are discussed focusing on different independence-from-parents conditions that characterize Italian emerging adults.