Seasonal daily effect on the number of births in Israel

Previous studies have observed a 7-day cycle with the least number of births occurring on Sundays. This study was aimed at characterizing the daily effect on the number of births in Israel, where Sunday is a regular working day and Saturday is a nonworking day. It was hypothesized that fewer births would be noted on Saturday rather than Sunday and fewer births on Jewish holidays. The data consisted of a random sample of live births during 1975. A robust time series procedure was used for the data analysis. As expected, the number of births was much smaller on Saturdays than on other weekdays (10% reduction). The seasonal component for Sundays was greater than that for any other day due to births delayed from Saturday and scheduled induced births. The number of births was not reduced as much on Saturdays during spring and summer as during fall and winter. In addition, fewer births occurred on most Jewish holidays. However, an unexpected and extremely high number of births was noted on Yom Kippur and the day after. It is speculated that the strain and fasting during this holiday promoted labor induction. In 21 of the 52 weeks in the study period, the least number of births occurred on a Saturday, and the number of births was less than the mean of the remaining 6 days in 46 of these weeks. Similarly, in 17 of the 52 weeks, the greatest number of births occurred on a Sunday, and the Sunday births exceeded the mean of Monday-Friday births in 35 of these weeks. Thus, these results confirm the study hypothesis and are believed to reflect intervention in childbirth.     

Social security and strategic inter-vivos transfers of social capital

This paper explains public provision of social capital in an overlapping generations model with gerontocracy, without resort to any bequest motive. The old generation has an incentive to provide education and infrastructure because these goods shift the Laffer curve of social security taxation, thereby increasing old-age income in the political equilibrium. The incentive is stronger if population growth is larger. The marginal productivity of social capital in the political equilibrium may exceed or fall short of the marginal productivity of social capital in an efficient allocation.Comments by Ursula Arlt, Tom G. McCarthy, Wolfgang Peters, the participants in seminars at the Universities of Cologne and Dortmund and two anonymous referees are gratefully acknowledged. The usual caveat applies.     

Options for balancing the OASDI Trust Funds for the long term

This article explores policy alternatives that can bring Social Security (OASDI) into long-term balance. The alternatives conform to long-standing principles that benefits are: an earned right, related to pay and time in the workforce, not based primarily on need; and related to annual changes in the cost of living. Furthermore, the OASDI is self-financed, employers and employees contribute equally, and participation is compulsory. In order to maintain public support, the policy alternatives also spread the "pain" of change between workers and beneficiaries, maintain income replacement rates for low-income earners, and retain a positive correlation between taxes and benefits. The article discusses varying four policy parameters to balance the funds: the primary insurance amount, the cost-of-living adjustment; the normal retirement age; and the payroll tax rate. Only by changing several policy parameters can all the objectives be satisfied. Discussed in detail are three scenarios, each of which includes a COLA cut and a pay-as-you-go FICA tax rate.     

Popularity and Acceptance as Distinct Dimensions of Social Standing for Chinese Children in Hong Kong

This study attempted to validate distinctions between popularity and social acceptance in the cultural context of Hong Kong. We recruited 280 Chinese children (132 girls, 148 boys, mean age = 9.5) from Hong Kong primary schools. These children completed a peer nomination inventory assessing popularity, social acceptance, social rejection, aggression, peer victimization, and social behavior. Consistent with research conducted in western samples, we found that social acceptance was correlated primarily with positive behavioral characteristics (i.e., assertiveness‐leadership and low levels of submissiveness‐withdrawal). In contrast, popularity was associated with a more mixed pattern of features including high levels of aggression. The overall pattern of findings closely replicates past research conducted in North American and European settings.     

An experimental investigation of imprecision attitude and its relation with risk attitude and impatience

We report in this article the result of three experiments on risk, ambiguity, and time attitude. The first two differed by the population considered (students vs. general population) while the third one used a different protocol and concerned students and portfolio managers. We find quite a lot of heterogeneity at the individual level. Of principal interest was the elicitation of risk, time, and ambiguity attitudes and the relationship among these (model free) measures. We find that on the student population, there is essentially no correlation. A non-negligible fraction of the population behaves in an extremely cautious manner in the risk and ambiguity domain. When we drop this population from the sample, the correlation between our measures is also non-significant. We also raise three questions linked to measurement of ambiguity attitudes that come out from our data sets.     

The Role of Respect in the Relation of Aggression to Popularity

Can aggressive children be popular with peers? Generally, sociometric popularity (liking nominations) has been shown to be negatively associated with aggression, and perceived popularity (popularity nominations) has been shown to be positively associated with aggression. The thesis of the present research was that being respected by peers moderates the relation between aggression and popularity. For both third‐ through sixth‐grade boys (N = 107) and girls (N = 117), perceived popularity by peers was positively associated with nominations for aggression (both overt and relational) only for children high in respect. Aggression was negatively associated with sociometric popularity for girls who were low in respect; sociometric popularity for girls high in respect was not related to aggression nominations. In sum, aggressive children were considered to be popular only if they were respected; aggressive girls were not disliked if they were respected.     

Gauging consumers’ responses to CSR activities: Does increased awareness make cents?

This study assessed the impact of knowledge of a company's corporate social responsibility efforts on both attitude and purchase intent. Until now, research studies have assumed knowledge was created via message exposure without measuring it. Results indicate that participants exposed to information about a company's CSR activities are more knowledgeable about those activities and that increased knowledge positively impacts attitudes and purchase intentions.     

A Structural Analysis of the R. Kahane Code of Informality: Elements toward a Theory of Informal Education

Reuven Kahane's code of informality, which identifies and defines eight "internal structural components," provides one of the few theoretical guides in the field of informal education. As a contribution to the development of a theoretical basis for empirical studies in this field, we wanted to uncover the underlying structural organization of these internal structural components. In a multidimensional analysis of Kahane's data, we found this structure of Kahane's eight components of informality along two axes. The first represents objects to which the structural components are applied: group, content, and activities. The second axis illustrates the components'expected impact–a process beginning with identification, moving through experimentation, and culminating in commitment. The process of experimentation represents a major contribution to the field on Kahane's part and is especially relevant to an understanding of education in a "postmodern" era. However, we found two gaps in the structure, possibly indicating missing components. Further analysis suggests that three of the components (modularity, pragmatic symbolism, and voluntarism) form a foundation of this structure and may be the minimal requirements for an understanding of informal activities and organizations.