Signals in Science - On the Importance of Signaling in Gaining Attention in Science

Which signals are important in gaining attention in science? For a group of 1,371 scientific articles published in 17 demography journals in the years 1990-1992 we track their influence and discern which signals are important in receiving citations. Three types of signals are examined: the author’s reputation (as producer of the idea), the journal (as the broker of the idea), and the state of uncitedness (as an indication of the assessment by the scientific community of an idea). The empirical analysis points out that, first, the reputation of journals plays an overriding role in gaining attention in science. Second, in contrast to common wisdom, the state of uncitedness does not affect the future probability of being cited. And third, the reputation of a journal may help to get late recognition (so-called ‘sleeping beauties’) as well as generate so-called ‘flash-in-the-pans’: immediately noted articles but apparently not very influential in the long run.signaling; duration dependence; journals; impact; citations

When the Quality of a Nation triggers Emigration

Why do people leave high-income countries with extensive welfare states? This article will examine what underlies the emigration intentions of native-born inhabitants of one industrialized country in particular: the Netherlands. To understand emigration from high-income countries we focus not only on factors that refer to individual characteristics, but also on the perception of the quality of the public domain, which involves institutions (social security, educational system, law and order) as well as the 'public goods' these institutions produce: social protection, safety, environmental quality, education, etc. Based on data about the emigration intentions of the Dutch population collected during the years 2004-2005 we conclude that besides traditional characteristics of potential emigrants - young, single, male, having a network in the country of destination, higher educated, seeking new sensations - modern-day emigrants are motivated not so much by private circumstances but by a longing for a better public domain. In particular, emigrants are in search of a better quality of life as approximated by the presence of nature, space, silence, and a less populated country. To gauge the effect of the quality of the public domain, a counterfactual scenario is offered, which suggests that a perception of severe neglect of the public domain substantially increases the pressure to emigrate. Under this scenario, approximately 20 percent of the Dutch population would express an intention to emigrate. Compared with the level of emigration intentions measured today, this represents an increase by a factor of 5.emigration; international migration; population pressure; public goods; externalities; brain drain

The Rationality behind Immigration Preferences

What drives stated preferences about the number of foreigners? Is it self-interest as stressed by the political economy of immigration? Does social interaction affect this preference or is the immigration preference completely in line with the preference for the aggregate population size? In this paper we distinguish each of these categories and show for the case of the Netherlands that each of these elements applies although the effect of population size preference and the self-interest are the most important elements. There is a clear divide across educational levels as the lower educated are more against immigration than the highly educated. Experience with foreigners arising from social contact matters in positively appreciating immigrants, especially if one meets (non-western) foreigners at work and school. Contact with foreigners while going out decreases the preference for immigrants. The ethnic composition of the neighbourhood in which one lives does not ex!ert a significant effect on the evaluation of the number of foreigners present. The biggest effect on immigration preferences is, however, the aggregate population size preference of respondents.Immigration; population; social interaction; public choice

Mapping the Minds of Retirement Planners

This study explored the psychological mechanisms that underlie the retirement planning and saving tendencies of Dutch and American workers. Participants were 988 Dutch and 429 Americans, 25-64 years of age. Analyses were designed to: (a) examine the extent to which structural variables were related to planning tendencies, and (b) develop culture-specific path analysis models to identify the mechanisms that underlie perceived financial preparedness for retirement. Findings revealed striking differences across the Netherlands and the United States not only among structural variables predictive of key psychological and retirement planning constructs, but also in the robustness of the path models. These findings suggest that policy analysts should take into account both individual and cultural differences in the psychological predispositions of workers when considering pension reforms that stress individual responsibility for planning and saving.retirement; pensions; financial planning; psychology; saving; uncertainty

Potential for Intensive Volunteering to Promote the Health of Older Adults in Fair Health

Volunteer service opportunities for older adults may soon be expanded. Although volunteering is thought to provide health benefits for healthier older adults, it is not known whether older adults in less than very good health are suitable candidates for high-intensity volunteering and can derive health benefits. This manuscript presents a prospective analysis of 174 older adult volunteers serving in Experience Corps Baltimore®, a high-intensity senior volunteer program in Baltimore, Maryland. Volunteers served ≥15 h per week, for a full school year, in elementary schools helping children with reading and other skills between 1999 and 2002. Volunteers were assessed with standardized questionnaires and performance-based testing including grip strength, walking speed, chair stand speed, and stair-climbing speed prior to school volunteering and at the end of the school year. Results were stratified by health status. Among 174 volunteers, 55% initially reported “good” and 12% “fair” or “poor” health status. At baseline, those in fair health reported higher frequencies of disease and disability than volunteers in excellent or very good health. After volunteering, a majority of volunteers in every baseline health status category described increased strength and energy. Those in fair health were significantly more likely to display improved stair-climbing speed than those in good or excellent/very good health (100.0% vs. 53.4% vs. 37.5%, p = 0.05), and many showed clinically significant increases in walking speed of >0.5 m/s. Satisfaction and retention rates were high for all health status groups. Clinicians should consider whether their patients in fair or good health, as well as those in better health, might benefit from high-intensity volunteer programs. Productive activity such as volunteering may be an effective community-based approach to health promotion for older adults