於梨华小说《梦回清河》的地域特色

《梦回清河》是於梨华的早期代表作,作者通过环境描写铺开浓郁的地域风情,通过人物活动还原地域的历史真实,且在艺术表现手法中也融入多种地域元素以呈现小说鲜明的地域特色。     

Return Visits as a Marker of Differentiation in the Social Field

Abstract

This article sets out to examine how differences within a migrant community are expressed through return visits, and particularly through visitors’ narratives about their country of origin. Drawing on semi-structured interviews with Burundians living in Norway and the UK, I argue that the Burundian social field is characterized by two opposing positions regarding the possibility of return, and that the political field in the country of settlement plays an influential role in how those two positions are defined. Two narratives called ‘instability and alienation’ and ‘progress and opportunities’ from return visits are used to express support for one or the other of these two positions. I also argue that Bourdieu’s conceptualization of social practice is highly relevant for migration research because it allows for analysing differences within a migration community, and that the advantages of combining habitus, capital and field should be further explored, both theoretically and comparatively.     

文物返还互惠协议评析

作为解决文物返还国际争议的一种合作型策略,文物返还互惠协议在明确文物来源国对争议文物享有所有权的同时,要求其作出承诺,将同种类别和价值的其他文物租借给移交该文物的博物馆等收藏机构并号召双方在更广阔的领域开展文物交流。互惠返还协议兼顾了文物国家主义与国际主义的利益需求,为文物返还争议的解决提供了一个可供选择的理想方案。     

高等教育投资回报率估算：基于西部三个城市的微观数据

本文基于中国西部三个城市,7949个住户的微观数据,利用内生的处理效应模型测算了城市家庭20-35岁青年的高等教育投资回报率。经验研究的结果显示：1. 现阶段青年人的高等教育投资内部报酬率大致在7%左右;按照30年工作时间计算的收入增加现值大约在8万元上下,高等教育使得月收入期望值平均增加80%。高等教育还能够使青年就业的可能性增加8%左右;2. 从性别的视角观察,高等教育对于女性的回报率高于男性,女青年内部报酬率大约在8.3%（男青年7.6%）;就业概率增加15.9%（男青年4%）,每月工资期望值增加122%（男青年67.5%）;3. 如果高等教育的全部花费增加到平均6万元,则从单纯的现金流意义上说,高等教育没有增加收入的价值了。     

中国流通A股市场投资者实现回报率研究

现实中的股票市场不可能完全符合资本市场有效性假设,因而把股票成交价格看作是股票的市场价值,并据此计算股票投资回报率的传统做法存在着明显的弊端。投资者实际实现的回报率对现实股票市场,特别是规范程度很低的我国股票市场的研究具有重要意义。本文提出了无需完全有效市场假设的现金概念及以此为基础的投资者实现回报率概念,并给出了现有条件下的投资者回报率计算公式和沪深两市的计算结果。     

二战被掠文物返还的法律基础及相关问题

第二次世界大战期间被掠夺或者被非法转移文物的返还问题近年来引起了国际社会的广泛关注。本文概要介绍了国际社会的相关实践,分析了中国被掠文物返还的法律基础,并探讨了中国收回被掠文物的途径和方法。作者认为,虽然在这个领域里缺乏直接的法律依据,但一些国际条约的相关规定和国际组织的宣言、建议仍可以作为我们与相关国家之间进行谈判的指导原则;收回被掠文物的主要途径除政府间达成双边或多边协定外,还包括有关国际组织的协调、民间机构的广泛参与和受害者的诉讼等。     

企业社会责任与盈余管理——对深圳A股的实证研究

企业社会责任有利于减少内部管理人员滥用信息优势,增加财务透明度。论文以深圳A股工业上市公司为样本,运用扩展琼斯模型探讨了企业社会责任与盈余管理之间的关系。研究结果表明:企业社会责任与盈余管理之间呈显著负相关;同时,社会责任行为也可能成为上市公司盈余平滑和在亏损年度调减或调增收益行为的掩护。     

Heteroscedasticity-robust estimation of autocorrelation

This paper proposes estimators of the first-order autocorrelation that are based on suitably transformed ratios of successive observations. The new estimators are given by simple functions of the observations. Numerical optimization is not required. Simulations show that they are highly robust against extreme values and clusters of high volatility and are therefore particularly useful for the estimation of serial correlation in return series. Besides, the results of the simulation study also call into question the common practice of correcting the small-sample bias of conventional estimators.     

ALGORITHMS FOR RETURN PROBABILITIES FOR STOCHASTIC FLUID FLOWS

Abstract

We consider several known algorithms and introduce some new algorithms that can be used to calculate the probability of return to the initial level in the Markov stochastic fluid flow model. We give the physical interpretations of these algorithms within the fluid flow environment. The rates of convergence are explained in terms of the physical properties of the fluid flow processes. We compare these algorithms with respect to the number of iterations required and their complexity. The performance of the algorithms depends on the nature of the process considered in the analysis. We illustrate this with examples and give appropriate recommendations.     

Reply

Beginning with the 1990 Census and the January 1992 Current Population Survey (CPS), the Bureau of the Census changed the emphasis of its educational-attainment question from years of education to degree receipt. Using a matched sample from the 1991 and 1992 March CPS, this article addresses how to reconcile the old and new questions. The effects of those methods on the estimated return(s) to education are then examined. Both the estimated linear return and the estimated college–high-school wage differential are slightly larger using information from the new question.