A k-sample slippage test for location parameter

Lewis (1972) has proposed a test for the slippage of the location parameter of k- populations when the direction of the slippage is unknown. In this paper, an extension of this test is proposed. The distribution of the test statistic is obtained under the null hypothesis of no slippage and the power of the test is compared with that of another competitive test proposed by Conover (1968).     

经济伦理研究有待澄清的三个问题——反思新自由主义经济思潮影响下的经济伦理研究

2008年爆发于华尔街的全球性的金融危机,宣告了新自由主义经济学神话的破灭,也使得以新自由主义经济学为背景的西方经济伦理学处在了十分尴尬的境地.中国学界在反思新自由主义经济思想的同时,也需要反思原有的经济伦理研究,需要从新自由主义经济思潮束缚下解放出来,以实现新的突破.     

语言输出与英文写作

本文介绍了Swain的输出理论及其在外语写作中的重要作用并提出提高写作技能的几种方法。     

公司治理结构与股利分配动机--基于代理成本和利益侵占的分析

本文以我国上市公司为对象,从公司治理结构安排的角度,系统研究2001年管理层出台新政策后公司的股利分配动机.结果表明,降低代理成本假说和利益侵占假说都在不同程度地发挥作用,集团控股公司适合降低代理成本假说;而对于政府控制公司,用利益侵占假说解释其股利分配动机更为恰当.我们进一步发现,针对我国特殊的股权结构特征及流通特征,现金股利在中国资本市场中具有"双刃剑"特征.     

人民币/美元名义汇率与中国通胀率的状态转换特征研究

通过扩展巴拉萨—萨缪尔森假说,对名义汇率升值和通胀的相互替代作用进行了理论解释。使用马尔科夫状态转换模型研究了1983年1月至2010年11月间人民币/美元汇率和中国通胀率的时间序列行为。研究显示：在缩小中美两国价格差距的过程中,结构性通胀与名义汇率升值有着相同的作用。人民币外在升值压力与国内通胀并存的问题,对于宏观经济平衡和货币政策制定者来说,既意味着机遇,也意味着挑战。所以,通胀与名义汇率升值的合适政策搭配会降低人民币升值预期,并逐步缓解人民币升值压力。     

Generalized growth curve models for longitudinal data in application to a randomized controlled trial

Growth curve analysis is beneficial in longitudinal studies, where the pattern of response variables measured repeatedly over time is of interest, yet unknown. In this article, we propose generalized growth curve models under a polynomial regression framework and offer a complete process that identifies the parsimonious growth curves for different groups of interest, as well as compares the curves. A higher order of a polynomial degree generally provides more flexible regression, yet it may suffer from the complicated and overfitted model in practice. Therefore, we employ the model selection procedure that chooses the optimal degree of a polynomial consistently. Consideration of a quadratic inference function (Qu et al., 2000) for estimation on regression parameters is addressed and estimation efficiency is improved by incorporating the within-subject correlation commonly existing in longitudinal data. In biomedical studies, it is of particular interest to compare multiple treatments and provide an effective one. We further conduct the hypothesis test that assesses the equality of the growth curves through an asymptotic chi-square test statistic. The proposed methodology is employed on a randomized controlled longitudinal dataset on depression. The effectiveness of our procedure is also confirmed with simulation studies.     

Testing the equality of several log-normal means based on a computational approach

In this study, we propose a new test based on a computational approach to test the equality of several log-normal means. We compare this test with some existing methods in terms of the type-I error rate and power using Monte Carlo simulations for varying values of number of groups and sample sizes. The simulation results indicate that the proposed test could be suggested as a good alternative for testing the equality of several log-normal means.     

Reimagining the Homeland: Zainichi Koreans’ Transnational Longing for North Korea

This paper explores the changing relationship of diaspora to the homeland. In particular, this article focuses on the changing relationship of pro-North Korea, Zainichi Koreans (Koreans in Japan) towards North Korea. Many Koreans in Japan continue to identify with North Korea, but the nature of this relationship has changed, due to shifting generational attitudes towards both the host society and North Korea. A dance recital I witnessed in an ethnic Korean high school in Japan exemplifies these changes. I suggest that the symbols highlighted within the recital articulate a particular form of political-ethnic identity that is characterised by a long distance nationalism, but without the desire to return to the homeland. Based on a year of ethnographic fieldwork with members of the pro-North Korea organisation, Ch'ongry?n, this paper explores how diasporic groups construct, negotiate, and reproduce identity in relation to nation states and transnational processes.     

Affective Friendship that Constructs Globally Spanning Transnationalism: The Onward Migration of Filipino Workers from South Korea to Canada

This article explores how affective friendship of migrant Filipino workers constructs transnationalism that overarches different host countries. Following a sequence of ‘mobility and sedentariness’ through ‘multi-sited ethnography’ methods, I discuss the affective friendship that emerges out of a specific sociocultural context in Korea, namely activities of the Catholic congregation. I also demonstrate that such friendship is accompanied by onward migration to Canada through the transfer of ties in a new social setting. Moving beyond the duality of home and abroad, this study reveals that migrants’ transnationalism exhibits cosmopolitanism through the reconfiguration of their compatriot friendship into globally spanning, multi-local ties.     

基于分层随机抽样的季节指数的抽样估计研究

由于传统的季节指数分析方法是一种描述统计,本文提出了采用分层随机抽样的季节指数估计量,给出了估计量的偏误和均方误差以及均方误差的估计,并在此基础上分析了季节指数的假设检验以及最优估计量的确定。