商科90后大学生选择财会专业的影响因素辨析

以个性独特的商科90后大学生为研究对象,采用实证研究辨析“财会热”背景下其是否选择财会专业的影响因素,可以发现学生是否选择财会专业的决定因素是人格特质,其中事物倾向的学生会选择财务专业,人际倾向的学生更有可能选择非财会专业;工作可获得性、初始工资、工作稳定性等情境因素也是影响学生是否选择财会专业的重要因素,但并不是决定因素;此外,虽然性别和父母意见也对学生是否选择财会专业产生影响,但作用有限。     

Comparison of ANOVA-F and ANOM tests with regard to type I error rate and test power

A Monte Carlo simulation was conducted to compare the type I error rate and test power of the analysis of means (ANOM) test to the one-way analysis of variance F-test (ANOVA-F). Simulation results showed that as long as the homogeneity of the variance assumption was satisfied, regardless of the shape of the distribution, number of group and the combination of observations, both ANOVA-F and ANOM test have displayed similar type I error rates. However, both tests have been negatively affected from the heterogeneity of the variances. This case became more obvious when the variance ratios increased. The test power values of both tests changed with respect to the effect size (Δ), variance ratio and sample size combinations. As long as the variances are homogeneous, ANOVA-F and ANOM test have similar powers except unbalanced cases. Under unbalanced conditions, the ANOVA-F was observed to be powerful than the ANOM-test. On the other hand, an increase in total number of observations caused the power values of ANOVA-F and ANOM test approach to each other. The relations between effect size (Δ) and the variance ratios affected the test power, especially when the sample sizes are not equal. As ANOVA-F has become to be superior in some of the experimental conditions being considered, ANOM is superior in the others. However, generally, when the populations with large mean have larger variances as well, ANOM test has been seen to be superior. On the other hand, when the populations with large mean have small variances, generally, ANOVA-F has observed to be superior. The situation became clearer when the number of the groups is 4 or 5.     

Heterogeneous data modeling with two-component Weibull–Poisson distribution

The mixture distribution models are more useful than pure distributions in modeling of heterogeneous data sets. The aim of this paper is to propose mixture of Weibull–Poisson (WP) distributions to model heterogeneous data sets for the first time. So, a powerful alternative mixture distribution is created for modeling of the heterogeneous data sets. In the study, many features of the proposed mixture of WP distributions are examined. Also, the expectation maximization (EM) algorithm is used to determine the maximum-likelihood estimates of the parameters, and the simulation study is conducted for evaluating the performance of the proposed EM scheme. Applications for two real heterogeneous data sets are given to show the flexibility and potentiality of the new mixture distribution.     

Decolonising the university in 2020

ABSTRACT

We came together as editors of Decolonising the University through a commitment to understanding the university and our place within it; to examine what else might be possible for us, collectively, in the domain of higher education. Although we do not always agree about the university– or, perhaps more specifically, about the possibilities it contains for intervening effectively in the world– we nonetheless coalesced around an idea of ‘decolonising the university’ as an important strategic mode of engagement. Here, we set out the positions that we come from in relation to the broader debates about the university and its political possibilities and offer responses also to the reviews. These are not our final words on the matter, but words shaped by the political possibilities that present themselves at the outset of 2020 and which, we hope, will contribute to the increasingly necessary dialogues on this topic.     

Re-Examining Vicious Circles of Development: A Panel Var Approach

Using panel data from 102 countries in 1975–2010, this paper explores the dynamic interaction among health, education and growth by applying panel VAR techniques. Empirical findings reveal that the predictive pattern among health, education and economic growth is not stable in the cross section of countries. While health has positive contribution to growth for all countries, education has benefited only higher middle income and high-income OECD countries. Economic growth has predictive power for the components of human development in the high-income OECD countries. Further, econometric evidence reveals that bi-directional relationship between health and education should be supported to reap the benefits of human development on economic growth.     

Association between sarcopenia and erectile dysfunction in males with type II diabetes mellitus

Background: The prevalence rates for both sarcopenia and erectile dysfunction (ED) gradually increase in middle-aged and elderly diabetic male population and they impair physical functioning, sexual functioning, and quality of life. The aim of the present study was to evaluate the sarcopenia in patients with diabetic ED.

Methods: The study included 98 male patients with type II diabetes mellitus (DM) aged 18–80?years. Blood chemistry and hormone levels were obtained. The International Index of Erectile Function (IIEF-5) questionnaire was administered to the patients. The patients were divided into three groups according to the IIEF-5 score; a score of 5–10 points indicated severe ED, a score of 11–20 indicated moderate ED, and a score of 21–25 points indicated no ED. The muscle mass, handgrip strength, timed up and go test, upper mid-arm circumference, calf circumference, and body mass index were obtained. The statistical analysis was performed using MedCalc Statistical Software version 12.7.7. All parameters were compared between the three groups.

Results: Of 98 patients included in the study, 84 patients had severe sarcopenia, 13 had moderate sarcopenia, while only one patient had normal muscle mass. The mean age was 56.59?±?11.46?years. When patients were divided into three groups according to IIEF-5 score, 38 had severe ED, 39 had moderate ED, and 21 had no ED. There was a significant difference between the three groups in terms of handgrip strength, timed up and go test scores, upper mid-arm circumference, and calf circumference (p?Conclusions: Although muscle mass remains unchanged, muscle strength and physical performance decrease in diabetic ED patients. Diabetic patients with severe and moderate ED have lower muscle strength and physical performance.     

水资源合作开发对中国与澜湄国家关系的影响

国际上水资源合作开发进程的加快同时加速了水资源问题的产生,澜—湄河流水资源的合作开发使湄公河流域六国之间的矛盾进入多发期.因水资源合作开发而产生的中国与湄公河下游国之间的纷争、域外大国的持续介入以及中国卷入湄委会之争等多重问题,严重影响了中国与澜湄国家双边关系的发展.对此,中国与湄公河五国应开展有效合作并合理利用澜—湄水资源,树立澜—湄河流合作开发利益共同体的意识,积极推行并实施"水外交"策略,为此才能有利于"水问题"的解决以及中国与湄公河五国关系的稳定发展.     

Separate Ratio Estimators for the Population Variance in Stratified Random Sampling

We propose separate ratio estimators for population variance in stratified random sampling. We obtain mean square error equations and compare proposed estimators about efficiency with each other. By these comparisons, we find the conditions which make proposed estimators more efficient than others. It has been shown that proposed classes of estimators are more efficient than usual unbiased estimator. We find that separate ratio estimators are more efficient than combined ratio estimators for population variance. The theoretical results are supported by a numerical illustration with original data. A simulation study is also carried out to investigate empirical performance of estimators.     

The demographics of expropriation risk

It is often argued that capital should flow from aging industrialized economies to countries with fast-growing populations. However, institutional failures and the risk of expropriation substantially reduce developing economies’ attractiveness for foreign investors. We analyze the influence of a country’s demographic structure on international investment inflows, using a political economy model in which population growth potentially affects the risk of expropriation. We first explore how redistributive expropriation affects the welfare of different age groups and derive the government’s incentive to expropriate. We then analyze how the relative size of different generations influences the feasible volume of foreign investment.     

“发展型”或“政策型”生育率下降?——基于翼城“农村二孩”试点的分析

中国生育率在过去30年持续下降至较低水平,围绕下降的主要动因及其政策涵义的争论热烈。文章以"农村二孩"试点之一的翼城为案例,重新梳理和检视了在已有研究中较为忽视的翼城试点出台的背景和政策实施细则,并从多个方面考察了翼城生育政策对生育行为和生育意愿的影响。与已有研究对翼城试点的认识不同,政策文献回顾表明:"农村二孩"生育政策只是在初婚时间、生育子女数和生育间隔方面做出一些技术性"调整"以缓解国情与民情的矛盾,并没有实质性地改变实施计划生育这一基本国策的初衷。多维度数据分析交叉印证了在实施限制性的生育政策以后,社会经济发展变量不能解释生育率的下降,翼城现有生育行为和生育意愿更多是政策干预的结果,是政策促成的外生性转变,而非由于社会经济发展导致低生育意愿的内生性转变。