Randomized confidence intervals of a parameter for a family of discrete exponential type distributions

For a family of one-parameter discrete exponential type distributions, the higher order approximation of randomized confidence intervals derived from the optimum test is discussed. Indeed, it is shown that they can be asymptotically constructed by means of the Edgeworth expansion. The usefulness is seen from the numerical results in the case of Poisson and binomial distributions.     

Technological progress, income inequality, and fertility

This paper constructs an overlapping-generations model with two different types of technology: modern, which can be accessed only by the skilled, and traditional, which can be accessed by the unskilled. The model described in this paper shows that a rise in the wage premium for skilled workers caused by skill-biased technological changes explains the following key stylized facts: with economic development, the fraction of skilled people increases, the fertility rate declines, and income inequality rises and then falls. The model also explains the observed gradual rises in income inequality in developed countries.      

Parent‐to‐Child Aggression Among Asian American Parents: Culture,Context, and Vulnerability

We examined correlates of lifetime parent‐to‐child aggression in a representative sample of 1,293 Asian American parents. Correlates examined included nativity, indicators of acculturation, socioeconomic status, family climate, and stressors associated with minority status. Results revealed that Asian Americans of Chinese descent and those who immigrated as youth were more likely to report minor parental aggression; ethnicity and nativity were not associated with severe aggression. Indices of acculturation did not predict risk, but minority status stressors (perceived discrimination, low social standing) predicted risk of both minor and severe aggression. Affective climate differed markedly in families with minor versus severe aggression. Parental aggression in Asian American families may not be cultural per se, but stress associated with immigrant family context may heighten vulnerability.     

Efficient Semiparametric Bayesian Estimation of Multivariate Discrete Proportional Hazards Model with Random Effects

We incorporate a random effect into a multivariate discrete proportional hazards model and propose an efficient semiparametric Bayesian estimation method. By introducing a prior process for the parameters of baseline hazards, we consider a nonparametric estimation of baseline hazards function. Using a state space representation, we derive a dynamic modeling of baseline hazards function and propose an efficient block sampler for Markov chain Monte Carlo method. A numerical example using kidney patients data is given.     

Combining Egalitarian Working Lives with Traditional Attitudes: Gender Role Attitudes in Taiwan,Japan, and Korea

In a simple theoretical framework, egalitarian gender role attitudes emerge as more and more women participate in the labor market. Most advanced Western nations enjoy relatively gender-egalitarian working environments, and consequently more egalitarian gender attitudes than their East Asian counterparts. Women in East Asian societies, on the other hand, are said to support both the conditions resulting in stagnant female labor-force participation and traditional attitudes toward gender roles. In Taiwan, however, women are more economically active than in two other East Asian societies—Japan and South Korea—even though women in all three societies favor the traditional gender division of labor. Thus, in Taiwan, women experiencing inconsistencies between their active working lives and their traditional values. This study hypothesizes that this inconsistency, or the coexistence of the old and the new, is reflected in the very mind-set of women. Using comparative data from the 2006 East Asian Social Survey, we analyzed the gap between responses to questions on gender attitudes in relation to working conditions, and other general gender role attitudes. We found there were significant differences in the size of these gaps. Taiwanese women expressed more egalitarian views insofar as the questions were concerned with practical economic interests, while they retained their basic traditional attitudes towards gender roles in their homes. This gap is larger in Taiwan than in Japan or South Korea.     

Age distribution, sex ratio and mortality of the red foxVulpes vulpes in Tochigi, central Japan: an estimation using a museum collection

One hundred and thirty carcasses of the red fox were collected in Tochigi Prefecture, by the Tochigi Prefectural Museum, from 1981 to 1991. The young/adult ratio of the sample was 1.60, which suggests that the hunting pressure has been relatively low in this area. Six percent of the animals were 5 years or older which compares to those taken in Hokkaido, but is higher than those in Europe and North America. The sex ratio for all specimens had a tendency towards male bias (0.587), but this bias was higher for the adult (0.605) than for the young (0.576). Among young (0 year-old) foxes, more individuals were killed on roads than by trapping or shooting (P<0.02, chisquare test). This mortality pattern was caused by high mortality of young males (P<0.02). The proportions of adults killed by the three mortality factors were similar, though only one of the 14 foxes older than 4 years old was shot, probably due to age-linked activity patterns. Most road-kills of young foxes occurred in May when juveniles began exploiting and in November when sub-adults began dispersal. The ratios of road-kills for the whole sample and for adults alone were 42% and 34%, respectively. These high rates of road-kills suggest that the mortality pattern in Tochigi has been affected by factors characteristic of urban environments.     

A discrete/continuous choice model on a nonconvex budget set

Decreasing block rate pricing is a nonlinear price system often used for public utility services. Residential gas services in Japan and the United Kingdom are provided under this price schedule. The discrete/continuous choice approach is used to analyze the demand under decreasing block rate pricing. However, the nonlinearity problem, which has not been examined in previous studies, arises because a consumer’s budget set (a set of affordable consumption amounts) is nonconvex, and hence, the resulting model includes highly nonlinear functions. To address this problem, we propose a feasible, efficient method of demand estimation on the nonconvex budget. The advantages of our method are as follows: (i) the construction of an Markov chain Monte Carlo algorithm with an efficient blanket based on the Hermite–Hadamard integral inequality and the power-mean inequality, (ii) the explicit consideration of the (highly nonlinear) separability condition, which often makes numerical likelihood maximization difficult, and (iii) the introduction of normal disturbance into the discrete/continuous choice model on the nonconvex budget set. The proposed method is applied to estimate the Japanese residential gas demand function and evaluate the effect of price schedule changes as a policy experiment.     

Humanizing strategy

In this article, we apply our latest thinking on knowledge to provide insights on how to reconceptualize strategy to cope with a VUCA world, epitomized recently by COVID-19. We demonstrate that business leaders must draw on phronesis, or practical wisdom, for strategy to become more future-oriented, society-focused, dynamic, and human-centric. Using in-depth case studies, we show how companies will survive in the long run if they start with a moral purpose, and end by offering value to customers, contributing to society, living in harmony with nature, and creating a new and better future. We came up with six practices that enable business leaders to create new and better futures, citing evidences from neuroscience. We conclude that humans should be at the center of strategy, driving future-making with the help of digital-led automation. Reconceptualizing strategy based on this “inside-out” approach, the reward to the company is resilience, longevity, and sustainability.     

Authoritarian Versus Authoritative Parenting Styles: Application of the Cost Equalization Principle

ABSTRACT

Given the lack of appropriate theoretical analysis in past research on parenting, this article aims to offer solid theoretical explanation for the effectiveness of authoritative parenting over authoritarian parenting by introducing the behavioral-structural model based on the principle of cost equalization. The results of computer simulation using the new theoretical model demonstrate that authoritarian parenting leads to development of a competitive/hostile structure where the child's spontaneous initiation is discouraged and the overall support within the dyad decreases, whereas authoritative parenting leads to development of a cooperative/friendly structure where the child's spontaneous initiation is encouraged and the overall support within the dyad increases. Implications of child socialization in competitive versus cooperative structures as predicted by the new theoretical model are also discussed.     

Clinical trial of treatment with saikokaryukotsuboreito for eugonadal patients with late-inset hypogonadism-related symptoms

The purpose of this study was to evaluate the efficacy and safety of saikokaryukotsuboreito (SKRBT), which is widely used for a variety of clinical conditions, neuropsychiatric disorders, for patients with LOH-related symptoms. Twenty-two eugonadal patients over 40 years of age with LOH-related symptoms were included in this study. SKRBT was given orally to these patients three times daily to a total of 7.5 g/day for more than two months. Laboratory and endocrinological profiles were reviewed, and LOH symptoms were judged by means of several health assessment instruments such as the Aging Males' Symptoms (AMS) scale, Self-rated Depression Scale (SDS), International Prostate Symptom Score (IPSS), and King's Health Questionnaire (KHQ). Total AMS scores and AMS subscores were significantly decreased after the treatment. The KHQ, general health perception and impact on life scores were also significantly decreased, although no significant improvement was observed in other KHQ factors or the SDS score or IPSS. The serum concentrations of testosterone fractions did not change with treatment. Laboratory values did not change, and no adverse effects were identified after treatment. We conclude that SKRBT may be considered for treatment of patients with LOH-related symptoms for eugonadal patients.