PUBLIC EDUCATION AND PENSIONS IN DEMOCRACY: A POLITICAL ECONOMY THEORY

A dynamic political economy theory of fiscal policy is presented to explain the simultaneous existence of public education and pensions in modern democracies. The driving force of the model is the intergenerational conflict over the allocation of the public budget. Successive generations of voters choose fiscal policies through repeated elections. The political power of elderly voters creates the motive for adults to support public investment in the human capital of future generations since it expands future pension possibilities. We characterize the Markov perfect equilibrium of the voting game in a small open economy. The equilibrium reproduces salient features of intergenerational fiscal policies in modern economies.     

The role of dispersal and local environment in urban land snail assemblages: an example of three cities in Central Italy

Ecologists increasingly appreciate the central role that urban biodiversity plays in ecosystems, however much urban biodiversity is neglected, especially some very diverse groups of invertebrates. For the first time in southern Europe, land snail communities are analysed in four urban habitats along a geographical gradient of three cities, using quantitative methods and assessing the relative roles of local environmental conditions (“distance from sea”, “distance from city centre”, “vegetation cover”) and spatial effects by principal coordinate analysis of neighbour matrices, redundancy analysis and variation partitioning. A total of 53 species was recorded, a richness similar to that of natural areas. At habitat level, species richness did not show a clear increasing trend from more to less urbanized habitats, but rather a homogeneous pattern. At city level, study areas hosted rather heterogeneous species assemblages and biotic homogenization did not seem to have any impact; indeed, only three species could be considered alien. Variation partitioning showed that land snail communities were mostly structured by environmental factors, even when spatial structures independent of measured environmental variables were included: “vegetation cover” and “distance from city centre” were the environmental variables that explained most of the variation in species composition. The lack of strong spatial structure also unexpectedly suggested that transport by humans aids dispersal of organisms with low mobility, which are usually limited by spatial constraints in natural environments. These results provide ecological and conservation implications for other invertebrate groups, suggesting to set priorities in management strategies that include habitat conservation at local scale.     

Does director capital influence board turnover after an incident of fraud? Evidence from Italian listed companies

Studies in U.S. have found that that director capital influences turnover within the board after an incident of fraud. We analyse whether there is a relationship between the probability of non-executive director turnover in Italian listed firms in which fraud has occurred and each director’s level of: (1) general business knowledge, (2) industry knowledge, and (3) relational capital. Our results suggest that non-executive director departure can be explained as a result of decisions by companies to clean their house of directors with lower expertise, industry knowledge and relational capital. These findings indicate that firms encourage the departure of these non-executive directors to signal to their stakeholders that they want to repair legitimacy and want to enhance the monitoring and resource provider tasks of the board. Indeed, in Italy, director turnover is more marked when the fraud visibility is greater. Furthermore, our study findings indicate that the cleaning house strategy is not influenced by the ownership structure and identity.     

Pool size and the sustainability of optimal risk-sharing agreements

We study a risk-sharing agreement where members exert a loss-mitigating action which decreases the amount of reimbursements to be paid in the pool. The action is costly and members tend to free-ride on it. An optimal risk-sharing agreement maximizes the expected utility of a representative member with respect to both the coverage and the (collective) action such that efficiency is restored. We study the sustainability of the optimal agreement as equilibrium in a repeated game with indefinite number of repetitions. When the optimal agreement is not enforceable, the equilibrium with free-riding emerges. We identify an interesting trade-off: welfare generated by the optimal risk-sharing agreement increases with the size of the pool, but at the same time the pool size must not be too large for collective choices to be self-enforcing. This generates a discontinuous effect of pool size on welfare.     

Toward a transdisciplinary approach of ergonomic design for sustainability

Starting from the results of a theoretical and methodological study on Ergonomic design for sustainability previously developed from the authors, this paper shows the early results of a study that tries to apply them to actual operational and conceptual apparatuses of Ergonomics. In particular, the research aims to verify the possibility for Ergonomics to initiate an update of its current theoretical and procedural tools, towards new design solutions of "sustainable well-being", trying to look for new declinations of its several fields of application. The paper identifies new paradigms and definitions for one of the central themes of ergonomic design, as well as one among the most established and investigated: the usability of products and services.     

Strategies and arguments of ergonomic design for sustainability

Referring to the discussion recently promoted by the Sub-Technical Committee n°4 "Ergonomics and design for sustainability", in this paper will be shown the early results of a theoretical and methodological study on Ergonomic design for sustainability. In particular, the research is based on the comparison between the common thematic structure characterizing Ergonomics, with the principles of Sustainable Development and with criteria adopted from other disciplines already oriented toward Sustainability. The paper identifies an early logical-interpretative model and describes possible and relevant Strategies of Ergonomic design for sustainability, which are connected in a series of specific Sustainable Arguments.     

Effects of strength and power training on neuromuscular variables in older adults

The purpose of this study was to compare the neuromuscular adaptations produced by strength-training (ST) and power-training (PT) regimens in older individuals. Participants were balanced by quadriceps cross-sectional area (CSA) and leg-press 1-repetition maximum and randomly assigned to an ST group (n = 14; 63.6 ± 4.0 yr, 79.7 ± 17.2 kg, and 163.9 ± 9.8 cm), a PT group (n = 16; 64.9 ± 3.9 yr, 63.9 ± 11.9 kg, and 157.4 ± 7.7 cm), or a control group (n = 13; 63.0 ± 4.0 yr, 67.2 ± 10.8 kg, and 159.8 ± 6.8 cm). ST and PT were equally effective in increasing (a) maximum dynamic and isometric strength (p < .05), (b) increasing quadriceps muscle CSA (p < .05), and (c) decreasing electrical mechanical delay of the vastus lateralis muscle (p < .05). There were no significant changes in neuromuscular activation after training. The novel finding of the current study is that PT seems to be an attractive alternative to regular ST to maintain and improve muscle mass.     

Efficacy of a Facial Emotion Training Program for Children and Adolescents with Autism Spectrum Disorders

Twenty-five high-functioning, verbal children and adolescents with autism spectrum disorders (ASD; age range 8–15 years) who demonstrated a facial emotion recognition deficit were block randomized to an active intervention (n = 12) or waitlist control (n = 13) group. The intervention was a modification of a commercially-available, computerized, dynamic facial emotion training tool, the MiX by Humintell©. Modifications were introduced to address the special learning needs of individuals with ASD and to address limitations in current emotion recognition programs. Modifications included: coach-assistance, a combination of didactic instruction for seven basic emotions, scaffold instruction which included repeated practice with increased presentation speeds, guided attention to relevant facial cues, and imitation of expressions. Training occurred twice each week for 45–60 min across an average of six sessions. Outcome measures were administered prior to and immediately after treatment, as well as after a delay period of 4–6 weeks. Outcome measures included (a) direct assessment of facial emotion recognition, (b) emotion self-expression, and (c) generalization through emotion awareness in videos and stories, use of emotion words, and self-, parent-, and teacher-report on social functioning questionnaires. The facial emotion training program enabled children and adolescents with ASD to more accurately and quickly identify feelings in facial expressions with stimuli from both the training tool and generalization measures and demonstrate improved self-expression of facial emotion.