Breastfeeding practices and parental employment in Japan

Much research shows that breastfeeding provides short- and long-term health benefits for both mothers and their children. However, few studies have yet investigated the factors which may promote or inhibit breastfeeding practices in Japan. To fill this research gap, this paper uses data newly gathered in 2012 on breastfeeding initiation and duration for each child of each mother, which enable us to estimate mother fixed-effects models that control for unobserved differences among mothers. Compared to mothers who leave their jobs after childbirth, mothers who return to work within a year after childbirth do not significantly differ in breastfeeding initiation but have a breastfeeding duration which is shorter by 1.654 months. On the other hand, when fathers work under a flextime system after childbirth, breastfeeding initiation is higher, and the duration is longer by 4.418 months. Therefore, letting fathers work under a flextime system would help promote breastfeeding practices in Japan.     

Care Diamonds and Welfare Regimes in East and South-East Asian Societies: Bridging Family and Welfare Sociology

This paper tries to bridge the micro-level analyses of social networks for "care" provision which have been conducted in the field of family sociology, and the macro-level framework on welfare mix which has been developed in the area of welfare sociology, because the options for creating social networks are given to individuals by society. A group of Asian researchers including the author have conducted comparative research on social networks for childcare and elderly care in six Asian societies, namely Korea, China, Taiwan, Thailand, Singapore, and Japan. To reexamine the results, the author draws diagrams of the care diamonds in each society for each type of care (childcare or elderly care) to show the balance between four sectors (the state, market, family and relatives, and the community) which determines the pattern of welfare mix. The most prevalent pattern in Asian societies today is the pattern with a large family and relatives sector and a large market sector. We can interpret it as a familistic welfare regime combined with liberalism. However, Japan alone shows a pattern close to pure familism because the development of the market sector is restricted by immigration policies prohibiting the employment of foreign domestic workers. Unlike other Asian societies which were exposed to the global market before the family could become a closed organization and marketization of care work took place easily, in Japan, where the modern family system had been established, both socialization and marketization of care work have stagnated.     

The Gamma-count distribution in the analysis of experimental underdispersed data

Event counts are response variables with non-negative integer values representing the number of times that an event occurs within a fixed domain such as a time interval, a geographical area or a cell of a contingency table. Analysis of counts by Gaussian regression models ignores the discreteness, asymmetry and heteroscedasticity and is inefficient, providing unrealistic standard errors or possibly negative predictions of the expected number of events. The Poisson regression is the standard model for count data with underlying assumptions on the generating process which may be implausible in many applications. Statisticians have long recognized the limitation of imposing equidispersion under the Poisson regression model. A typical situation is when the conditional variance exceeds the conditional mean, in which case models allowing for overdispersion are routinely used. Less reported is the case of underdispersion with fewer modeling alternatives and assessments available in the literature. One of such alternatives, the Gamma-count model, is adopted here in the analysis of an agronomic experiment designed to investigate the effect of levels of defoliation on different phenological states upon the number of cotton bolls. Data set and code for analysis are available as online supplements. Results show improvements over the Poisson model and the semi-parametric quasi-Poisson model in capturing the observed variability in the data. Estimating rather than assuming the underlying variance process leads to important insights into the process.     

A Cross‐Cultural Examination of the Disjuncture Between Aspirations and Expectations/Perceived Outcomes: Strain and Academic Deviance in the United States and Japan

Using comparable self‐reported survey data collected among college students in the United States (n = 502) and Japan (n = 441), this study examines a paradox of higher academic deviance among otherwise more conforming Japanese youth while revisiting the debate concerning the disjuncture between aspirations and expectations/perceived outcomes in Agnew's general strain theory (GST). Confirming the paradox, our results indicate that Japanese students are significantly more deviant academically than American students. However, contrary to the expectation of GST, but in support of past empirical studies, the higher academic deviance among the Japanese, as compared to Americans, is explained by their lower aspirations, irrespective of the levels of expectations/perceived outcomes     

Defining child abuse: Exploring variations in ratings of discipline severity among child welfare practitioners

This study investigated child welfare practitioners’ ratings of the severity of parental discipline practices. Ratings varied by the type of act, age of the child, and by chronicity. Exploratory investigation into changes across time found that current practitioners (N = 27) rated several practices (e.g. spanking and shaking) as more severe than did professionals (N = 24) sampled in 1977. Results underscore the complexity of defining child maltreatment and offer implications for practitioners, applied researchers, and child welfare policy makers.The authors Stephen D. Whitney, Emiko A. Tajima, Todd I. Herrenkohl, and Bu Huang are affiliated with the School of Social Work, University of Washington.Work on this project is supported by funds from the Social Work Prevention Research Center, School of Social Work, University of Washington (National Institute of Mental Health Grant R24MH56599, Lewayne Gilchrist, PI) and by the University of Washington Royalty Research Fund.     

Captivating debris: Unearthing a world war two internment camp

Abstract

This article explores the potent force of material objects in testimional culture by enacting an encounter with the ‘debris’ of a World War Two internment camp for Japanese Canadians. Pushing beyond the limits of the repetition of linear history, the article moves instead towards a phenomenological analysis of how yielding to remains of the past might allow us to reconnect with the destroyed worlds from which they were removed. Using Michel Taussig's notion of mimesis and Peggy Phelan's work on mimicry, alongside Merleau‐Ponty's work on the habit‐body, this article brings into relief the neglected place of material objects collected by archives and brought to memorials in testimonial culture.     

A dynamic game analysis of Internet services with network externalities

Theory and Decision - Internet services, such as review sites, FAQ sites, online auction sites, online flea markets, and social networking services, are essential to our daily lives. Each Internet...     

Permutation Test for Equality of Individual an Eigenvalue from a Covariance Matrix in High-Dimension

A test statistic for examining the equality of an individual eigenvalue in two populations of high dimension is proposed. The asymptotic distribution of the proposed statistic is derived and the validity of the permutation test is discussed. Simulations were used to investigate the power of the suggested statistic. The proposed statistic is applied to hand measurement data on white and aboriginal Australians to test the equality of the eigenvalues.