Self‐Focused Attention and Career Anxiety: The Mediating Role of Career Adaptability

The purpose of this study was to examine how 2 forms of self‐focused attention, self‐reflection and self‐rumination, influence career anxiety. The authors hypothesized that the association between these 2 types of self‐focused attention and career anxiety would be mediated by career adaptability on the basis of a career construction model of adaptation. The participants were 326 undergraduate students in South Korea. The results of this study supported the hypothesized mediation model by indicating significant indirect effects of self‐reflection and self‐rumination on career anxiety via career adaptability. The direct effect of self‐rumination on career anxiety was significant (B = .44, p < .01), but the direct effect of self‐reflection on career anxiety was not significant (B = –.05, p > .05). The authors discuss implications for counselors to help college students manage career anxiety by encouraging and supporting increased career adaptability. Future research to examine the cross‐cultural validity of the current findings is needed.     

ML estimation and an efficiency study for mean estimators in spatially correlated repeated arrays

For spatially correlated repeated arrays, a simple method is proposed for maximum likelihood (ML) estimation of the mean parameters. Efficiency of the sample mean over the maximum likelihood estimator (MLE) is analyzed. Spatial correlations combined with heterogeneity of spatial correlations or heterogeneity of error variances are shown to have adverse effect on efficiency of the sample mean. Therefore, in such spatially correlated and heterogeneous situations, it is recommended that spatial correlations should be properly addressed in estimating mean parameters.     

Economic Policy and Social Policy: Policy-linkages in an Era of Globalisation

This article argues that changes in the role of the state in economic affairs will affect the process of social policy. Growing economic integration caused by globalisation now places a greater constraint upon the discretion of the nation state, bringing about a transformation into a more competitive state. States are increasingly having to compete against each other in order to promote competitiveness and attract foreign direct investment (FDI) from international capital markets. This competition influences in turn the social policy formation requiring the redesigning of social policy. Thus, welfare states may need to reform their social policy towards a "business-friendly social policy". The analysis of social policy inputs and outputs presented here suggests that there are common trends in most welfare states towards: a market-conforming policy on business taxation, a reduction of the share of employer's contributions in social protection revenues, more limited income security programmes, an increased allocation of resources for active labour market programmes and less state intervention in the labour market. All these reforming trends in social policy can be understood as a response of welfare states to the evolving needs of business caused by structural change, notably globalisation.     

Stabilities of infant behaviors and maternal responses to them

Consistency in the order of individuals in a group across substantial lengths of time—stability—is a central concept in developmental science for several reasons. Stability underscores the meaningfulness of individual differences in psychological phenomena; stability informs about the origins, nature, and overall developmental course of psychological phenomena; stability signals individual status and so affects the environment, experience, and development; stability has both theoretical and clinical implications for individual functioning; and stability helps to establish that a measure constitutes a consequential individual‐differences metric. In this three‐wave prospective longitudinal study (Ns = 40 infants and mothers), we examined stabilities of individual variation in multiple infant behaviors and maternal responses to them across infant ages 10, 14, and 21 months. Medium to large effect size stabilities in infant behaviors and maternal responses emerged, but both betray substantial amounts of unshared variance. Documenting the ontogenetic trajectories of infant behaviors and maternal responses helps to elucidate the nature and structure of early human development.     

Quantile forecasts for financial volatilities based on parametric and asymmetric models

For financial volatilities such as realized volatility and volatility index, a new parametric quantile forecast strategy is proposed, focusing on forecast interval and value at risk (VaR) forecast. This fully addresses asymmetries in 3 parts: mean, volatility and distribution. The asymmetries are addressed by the LHAR (leverage heterogeneous autoregressive) model of McAleer and Medeiros (2008) and Corsi and Reno (2009) for the mean part, by the EGARCH model for the volatility part, and by the skew-t distribution for the error distribution part. The method is applied to the realized volatilities and the volatility indexes of the US S&P 500 index, the US NASDAQ index, the Korea KOSPI index in which significant asymmetries are identified. Considerable out-of-sample forecast improvements of the forecast interval and VaR forecast are demonstrated for the volatilities: forecast intervals of volatilities have better coverages with shorter lengths and VaR forecasts of volatility indexes have better violations if asymmetries are properly addressed rather than ignored. The proposed parametric method reveals considerably better out-of-sample performance than the recently proposed semiparametric quantile regression approach of Zikes and Barunik (2016).     

The relationship between serum total testosterone and free testosterone levels with serum hemoglobin and hematocrit levels: a study in 1221 men

Objective: To investigate the relationship between serum total testosterone (TT) and free testosterone (FT) levels in men with anemia.

Methods: We reviewed the records of 1221 subjects between March 2009 and December 2014. All the subjects’ blood samples were drawn for TT and FT assays. Their serum hemoglobin (Hb) and serum hematocrit (Hct) levels were measured. The primary objective of our study was to investigate the association between TT and FT levels with Hb and Hct levels.

Results: The mean age was 59.82?±?12.71 years. The mean TT and FT levels were 4.54?±?2.02?ng/mL and 10.63?±?3.69?pg/mL, respectively. The mean Hb and Hct levels were 14.72?±?1.34?g/dL and 43.11?±?3.75%, respectively. Subjects with low TT (<2.35?ng/mL) had low Hb and Hct levels (p?p?Conclusions: Subjects with low TT and FT levels had low Hb and Hct levels. This suggests that TT and FT play a significant role in erythropoiesis. Testosterone replacement therapy may be effective in men with hypogonadism to reduce the incidence of anemia.     

20世纪以来中国外交史研究：以日本为中心

随着中国在国际舞台上发挥出日益重要的影响力,一度沉寂的中国外交史与东亚国际政治史的相关研究再趋活跃.但由于受限于方法论上未对中国视角予以足够重视,以及中国自身档案利用上的不足,有关中国外交史的实证型研究仍不多见.笔者认为,通过整合从中国视角出发的东亚国际政治史与以往从外部展望的中国历史,将会形成崭新的东亚国际政治史.只有这样,由全球化、地区化等主要元素构成的目前的中国外交史才能成为具有历史视野的研究.本文通过梳理19世纪至20世纪初中国外交史及以中国为舞台的东亚国际政治史的研究,重新审视了研究史上的成果和课题,并结合近年来史料利用等研究环境的变化,展望今后的研究方向.     

ASSET PRICE BUBBLES AND TECHNOLOGICAL INNOVATION

We introduce borrowing constraints into a two‐sector Schumpeterian growth model and examine the impact of asset price bubbles on innovation. In this environment, rational bubbles arise when the intermediate good producing R&D sector is faced with adverse productivity shocks. Importantly, these bubbles help alleviate credit constraints and facilitate innovation in the stagnant economy. On the policy front, we make a case for debt financed credit to the R&D sector. Further, we establish that a constant credit growth rule (akin to the Friedman rule) outperforms the often prescribed counter‐cyclical “lean against the wind” credit policy. (JEL E32, E44, O40)     

An inspection procedure for radio frequency repeaters using a multiple linear regression method

Abstract

A radio frequency (RF) repeater is a wireless electronic device that transmits signals from a base transceiver station to a mobile station. When inspecting RF repeaters, various items are required to be tested to ensure their quality. In this paper, we propose a systematic procedure for the inspection by using a multiple linear regression method. The basic idea is to predict the inspection result without real inspection. In particular, a multicollinearity problem is considered in the regression analysis. Two case studies are conducted for validating the proposed method with an RF repeater production company in Korea.     

Precarious workers' choices about unemployment insurance membership after the Ghent system reform: The Finnish experience

The literature on the Ghent system has focused on the link between voluntary unemployment insurance and union membership in terms of industrial relations. Less attention has been paid to unemployment benefits and employees' decision‐making concerning unemployment insurance, even though the core function of the Ghent system is to provide unemployment insurance. This paper examines both of the options that precarious workers (i.e., part‐timers, temporary employees, and low‐skilled service employees) choose regarding unemployment insurance membership and the change in union density after the Ghent system reform in Finland. First, the results show that the growth of the independent unemployment insurance fund was the main reason for declining union density in the 2000s and early 2010s. Second, in terms of precarious workers, we find that the emergence of the independent fund has affected their choices about unemployment insurance membership and that their choices depend on the type of precarious employment they have. Moreover, part‐timers and temporary employees younger than 35 years of age are much less likely to enroll in unemployment insurance than older employees who have the same types of employment contracts.