Active Ageing Index in Korea – Comparison with China and EU countries

The evidence‐based policymaking relies on the use and robustness of the available data. Many conceptual and operational difficulties restrict this process, not least in making use of evidence to identify policy priorities. The Active Ageing Index (AAI), developed originally for the 28 European Union countries, offers a strong motivation in this respect. This paper reports on the development of the AAI for Korea, a country where speed and level of population aging is among the highest in the world. Drawing on the comparative analysis of the AAI results for Korea, China, and European countries, we find that Korea's AAI (35.3) is higher than the average of the AAI for all EU countries (33.9) but lower than China (37.3). Fitting Korea into the overall ranking with the EU countries and China (ranked 7), Korea is ranked 11, just behind Germany (10). The AAI results in Korea show that the employment domain performs extremely well compared with the EU countries, but other domains, especially “Social participation” and “Independent, healthy and secure living,” are achieving less favorable outcomes. High employment among the current cohorts of older workers in Korea can be attributed largely to the constraints of low pension income status.     

Physical and social circumstances of children in Iran affected by the incarceration of the mother

The children of incarcerated parents have been a relatively invisible population. More and more children are being affected by the incarceration of a parent. These young people are already at high risk along several dimensions and tend to live under conditions characterised by poverty, instability and diminished access to sources of support. The study presented in this research explores the physical, social and psychological conditions of children in Iran affected by the incarceration of the mother, thereby contributing to the international literature by describing the problem of children of prisoners in Iran. Here we describe in an international perspective the physical and social conditions with which these children are confronted. The study comprises 33 children who had spent some time in prison with their mothers but were then moved to welfare centres. The most prevalent illnesses of these children were infectious diseases, bruises, wounds on lips and fractures of the hand. The Vineland Social Maturity Scale indicated that the children's locomotion and socialisation skills were relatively low.     

Generalized neighbor designs with block size 3

A generalized neighbor design relaxes the equality condition on the number of times two treatments as neighbors in the design. In this article, we have considered the construction of some classes of generalized neighbor designs with block size k=3 by using the method of cyclic shifts. The distinguishing feature of this construction method is that the properties of a design can easily be obtained from the sets of shifts instead of constructing the actual blocks of the design. A catalog of generalized neighbor designs with block size k=3 is compiled for v∈{5,6,…,18} treatments and for different replications. We provide the reader with a simpler method of construction, and in general the catalog that gives an open choice to the experimenter for selecting any class of neighbor designs.     

Analysis of the performance of test statistics for detection of outliers (additive,innovative, transient,and level shift) in AR (1) processes

Outlier detection has always been of interest for researchers and data miners. It has been well researched in different knowledge and application domains. This study aims at exploring the correctly identifying outliers using most commonly applied statistics. We evaluate the performance of AO, IO, LS, and TC as vulnerability to spurious outliers by means of empirical level of significance (ELS), power of the test indicating the sensitivity of the statistical tests in detecting changes and the vulnerability to masking of outliers in terms of misspecification frequencies are determined. We have observed that the sampling distribution of test statistic η_tp; tp = AO,?IO,?LS,?TC in case of AR(1) model is connected with the values of n and φ. The sampling distribution of η_TC is less concentrated than the sampling distribution of η_AO, η_IO, and η_LS. In AR(1) process, empirical critical values for 1%, 5%, and 10% upper percentiles are found to be higher than those generally used. We have also found the evidence that the test statistics for transient change (TC) needs to be revisited as the test statistics η_TC is found to be eclipsed by η_AO,?η_LS and η_IO at different δ values. TC keeps on confusing with IO and AO, and at extreme δ values it just gets equal to AO and LS.     

An economical acceptance–rejection algorithm for uniform random variate generation over constrained simplexes

This paper develops an algorithm for uniform random generation over a constrained simplex, which is the intersection of a standard simplex and a given set. Uniform sampling from constrained simplexes has numerous applications in different fields, such as portfolio optimization, stochastic multi-criteria decision analysis, experimental design with mixtures and decision problems involving discrete joint distributions with imprecise probabilities. The proposed algorithm is developed by combining the acceptance–rejection and conditional methods along with the use of optimization tools. The acceptance rate of the algorithm is analytically compared to that of a crude acceptance–rejection algorithm, which generates points over the simplex and then rejects any points falling outside the intersecting set. Finally, using convex optimization, the setup phase of the algorithm is detailed for the special cases where the intersecting set is a general convex set, a convex set defined by a finite number of convex constraints or a polyhedron.     

Income mobility among the elderly in Sweden during the 1990s

Using a large panel dataset, this article investigates the degree of, and explanatory factors for, income mobility amongst the elderly in Sweden during the 1990s. It contributes to literature on welfare indicators for the older population as it supplements the welfare picture of the income adequacy with insights into income certainty during old age. Our methodological approach is to work with the administrative register data for Sweden, and this allows us to use a reliable record of incomes for a large sample of the elderly. Results for Sweden-born and foreign-born elderly persons are analysed separately and compared with corresponding groups of people of working age. Not surprisingly, nearly all of our results indicate that the income of the older population is more stable than that of the working age population, and upward income mobility is not as usual among the elderly as among other groups. The multivariate regression analyses identify several explanatory factors affecting those elderly who experienced income mobility. Most importantly, the death of a spouse increases the probability of downward income mobility, particularly amongst women. These and other findings of this research point to triggers of income poverty in old age that should be taken into account in policies concerned with the level and indexation of retirement income of future pensioners.     

Congressional support for unions’ positions across diverse legislation

Organized labor has become increasingly active in national politics. This development has encouraged research into union political activities, particularly in the area of legislative politics. But little research has been published on the basis of congressional support for union positions on diverse public policy items. This paper has examined the correlates of congressional support for unions’ positions across 33 roll-call votes taken in the first session of the 98th Congress. Empirical analyses suggest that certain factors, such as legislators’ party affiliation and constituents’ ideology, are consistent correlates of such support across diverse legislation. The authors wish to thank John Delaney and Jack Fiorito for their generous comments on a previous version of the paper. They also wish to thank the union lobbyists who granted interviews. A Faculty Research Grant from the Graduate School of Business, University of Pittsburgh, provided partial support.