Relatives in Residence: Relatedness of Household Members Drives Schooling Differentials in Mozambique

Children typically receive investments from their fathers, but absent fathers often invest at low levels. In a father's absence, what types of nonfathers invest heavily in children? This article investigates educational participation as a reflection of childhood investments on Ibo Island, Mozambique, where only one third of school‐aged children live with their biological fathers. Father‐present children generally attended school at the highest rates. Stepchildren and father‐absent relatives (e.g., grandchildren, nieces) attended school at comparably high rates if any coresiding children were father‐present. This may signal high altruism among present fathers toward some nonoffspring. Consistent with this result, a fixed effects model indicates that, within the same household, adult males invested equally in their own children, relatives, and stepchildren. Prejudicially lower investments were made in children who were unrelated to the household's adult males, however; this result has strong negative implications for the well‐being of African children fostered by nonrelatives.     

信息产业对经济增长贡献的计量分析

文章试图对信息产业对经济增长的贡献作一定量分析。为此,首先将国内部门分为信息产业与非信息产业两大部门,并以这两部门的生产函数为基础,推导出最终的计量模型,然后根据湖北省的有关数据对模型进行回归分析。分析的结果表明,信息产业对经济增长的综合的边际产出贡献很高,从而说明对信息产业应继续加大投入,引导和扶持信息产业的发展,以促进整个湖北省经济持续、高速、稳定增长。     

中国货币政策利率工具调控的数量效应与价格效应分析

通过构建VAR模型,实证分析中国货币政策利率工具调控的数量效应和价格效应。结论显示:在市场流动性过剩的金融环境下,商业银行信贷规模对利率政策的敏感性增强,货币政策利率工具调控的数量效应有所扩大;由于短期"费雪效应"的存在,弱化了货币政策利率工具调控的价格效应;货币政策的数量型工具对抑制通货膨胀见效相对更快。因此,货币当局在金融调控中,需要根据经济发展的不同周期阶段和金融环境,合理搭配运用价格型和数量型货币政策工具,提高货币政策的调控效率和预期效应。     

新疆省际人口迁移现状及效果评价

人口迁移对迁出地、迁入地双方均产生政治、经济、文化等多方面的影响．因而人口迁移和流动一直受到各国学者的广泛关注。新疆一直是人口迁移活动频繁的地区。本文根据全国第五次人口普查和第六次人口普查的数据,对近年来新疆省际人口迁移的现状进行了翔实的描述,评价了新疆省际人口迁移的效果,指出了省际人口迁移过程中所存在的问题,最后提出建立新疆人口省际迁移的协调机制、采用灵活人口政策吸引外省优秀人口和实现流动人口基本公共服务均等化等三点政策建议。     

Physical exercise,employee fitness and the management of health at work

Abstract

This paper presents some recent data on why organizations invest in exercise and physical fitness programmes for their stiff. These data suggest that, owing to a lack of evaluation studies, organizations act mainly on the basis of assumption and belief. However, from a subsequent review of the available literature on the personal and organizational effects of such programmes, it appears that these assumptions and beliefs are not altogether unfounded. The paper concludes by discussing the ways in which exercise and employee fitness programmes might help die individual and their organization in terms of the management of health at work.     

人口流动对健康的影响

在当今世界,人口流动的重要性日益突出,其对健康的影响也日益扩大。尽管涉猎人口流动与健康这个交叉领域的学者很多。但致力于考察前者对后者的影响的作品却为数不多。原因在于流行病学的视角局限了大家的视野。为了扭转这种局面,笔者强调指出,要考察人口流动对健康的影响,必须比较流动前后人群在健康状况方面的变化。以此为导向。在回顾文献的基础上。笔者初步回答了两个问题：流动对健康的影响体现在何处？这些影响得以实现的机制是什么？最后,笔者还为将来的研究提供了一些建议。     

我国货币政策区域效应的实证分析——基于面板数据模型的研究

目前我国实行统一的货币政策,其弊端是往往忽略各地区由于不同发展水平而造成对货币政策反应不一致的问题,从而产生不利于各地区经济协调发展的连带效应。利用面板数据模型对我国31个省份1994年至2009年各省的数据进行分析,依据模型的选择标准对各省的实际GDP与货币供应量建立变系数模型,以此来考察各省经济对货币政策的敏感性,研究结果表明我国货币政策确实存在区域效应,并在此基础上给出了相应的政策建议。     

Top management departures in cross-border acquisitions: Governance issues in an international context

This study examined top management team departures in U.S. manufacturing firms acquired by a foreign multinational during the six-year period following acquisition. Results indicated that greater cultural distance between the United States and the home country of the foreign multinational, higher levels of international integration in the target industry, and poor preacquisition performance in the U.S. target company were related to greater postacquisition top management departures. These effects were moderated significantly by the foreign acquirer’s international business and U.S. acquisition experience and showed different patterns over the short-term, intermediate-term, and long-term. Implications for future research on top management teams involved in cross-border acquisitions are discussed.     

The impact of sales promotions on store performance: a structural vector autoregressive approach

The present paper analyses the impact of sales promotions on store performance, in the short and long term, from the retailer's point of view. Relationships among promoted and regular sales in the hypermarkets of a large-scale retail chain of national importance, are investigated by means of a structural vector autoregressive model (SVAR). Statistically significant effects of sales promotions in the heavy household section on store sales are found in the short-run; these promotions produce additional sales and thus act as an attractive factor. Promotions in textile category, on the contrary, produce an immediate negative effect on net sales. In the long run, negative statistically significant effects on regular sales are detected when promotions are repeatedly implemented within perishables category.