Datenverfügbarkeit und Datenzugang am Forschungsdatenzentrum der Bundesagentur für Arbeit im Institut für Arbeitsmarkt- und Berufsforschung

Zusammenfassung: Die Bundesagentur für Arbeit (BA) geh?rt zu den wichtigsten Produzenten statistischer Daten über den Arbeitsmarkt und die wirtschaftliche Entwicklung in Deutschland. Bislang bestand kein institutionalisierter Datenzugangsweg für Forschende au?erhalb des Instituts für Arbeitsmarkt- und Berufsforschung (IAB). Das Forschungsdatenzentrum (FDZ) der BA im IAB wurde mit dem Ziel eingerichtet, den Zugang zu den Daten der BA und des IAB für externe Forscher zu erschlie?en und systematisch auszubauen. In dem Beitrag beschreiben wir die im FDZ für die Fach?ffentlichkeit zug?nglich gemachten Daten der BA und des IAB sowie die verschiedenen Zugangsm?glichkeiten der wissenschaftlichen Forschung zu diesen Daten.

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Summary: The Federal Agency of Labour (BA) is one of the most important producers of offcial data on the labour market and the economic development in Germany. Until recently, there has been no institutionalized way of data access for researchers outside the Institute of Employment Research (IAB). The research data centre (FDZ) of the BA in the IAB has been established in order to develop and systematically extend the data access for scientists. In this paper we describe the data of the BA and the IAB which will be made accessible via the FDZ as well as the different modes of access to those data.

     

美式认购期权最佳执行时间决策

期权最佳执行时间是一个十分复杂的问题,受到许多随机因素的影响,至今还没有得到很好地解决．本文运用马尔可夫转移概率,讨论了满足齐次性条件的平稳系统中美式认购期权的最佳执行时间决策问题．研究了几种常见概率分布的最佳执行时间集．定理3－6的结论,与期权交易市场的实际情况吻合较好．主要结果可以直接应用到股票、期货交易、工程项目投资决策以及国家重大科技、经济、政治、军事战略决策之中．     

我国企业成本管理的重心及其发展趋势

文章在对我国企业传统成本管理和现代成本管理的重心进行回顾的基础上,指出了我国企业成本管理的战略成本管理、业务流程重组、供应链管理、企业资源计划系统、客户关系管理等五个方面的发展趋势。     

Local authority family centre intervention: a statistical exploration of services as family support or family control

This paper sets out findings from a statistical exploration into services arising from child protection referrals which became open cases allocated to local authority child care social workers employed by a large local authority social services department in South Wales. The workers operate from six local authority family centres located in areas of high social need. They offer a range of family support services as well as carrying out child protection investigations and related activities. In analysing the data a probability ratio was created to identify which offered services were more likely to be taken up. An activity index for services offered and taken up was then constructed followed by an attempt to delineate families' likely orientation to a family support or 'protection and control' mode of intervention. This is achieved by creating a simple range of lower and upper bounds of perception by imputing service orientation from the position of three 'representative individuals': a 'very suspicious client', a 'neutral third party', and a 'very optimistic social worker'. These three positions allow manipulation of the questionnaire data to estimate the probable interpretation of services from provider and recipient standpoints. From these sources parameter estimates to explore key variables associated with worker views about the sufficiency of their service in relation to family support and/or more controlling forms of intervention are deployed. The study suggests that child protection cases receive a family centre service strongly orientated to support rather than a narrow policing activity. However, there remain some notable differences of perception between worker and 'representative individuals' that imply potential difficulties over the role of local authority family centres.     

张家港市农村居民点调整与可持续发展的探讨

张家港市农村居民点占地面积大、土地利用效率不高、分散而且规模小等特点,不适应全市经济和社会持续发展的要求,需要从农村居民点建设、提高城镇人口比重等途径,大力加以调整,建设现代化的新农村。     

金融功能细分对区域经济竞争的启示——以青岛为例

金融功能的细分趋势使现代金融产业的发展表现出信息化、网络化、中心化特点,并促使新生的金融业务发展成为金融网络新的节点。利用SWOT模型分析青岛的金融产业发展战略选择问题,从而提出了建设以金融物流为特色的专业化国际性金融中心的建议。     

浮体稳定平衡的条件

浮体所受浮力的作用点一般不与其重力的作用点重合.那么,浮体在什么条件下平衡,是否在其重心低于浮心的情况下稳定平衡,这个问题容易产生误解.本文指出,决定浮体平衡与否的是重心与定倾中心的相对位置,而不是重心与浮心的相对位置,在重心低于或等于定倾中心时,浮体就处于稳定平衡.     

张国焘放弃另立中央原由探析

张国焘于1935年9月违背中央北上的战略方针,擅自率红四方面军南下,并于10月5日在绰木碉成立第二中央,自封为主席。但后来放弃另立中央的主张。文章认为导致其放弃另立中央的根本原因是军事上的失败、政治上的孤立。另外,党中央对张国焘采取的正确策略、张浩的调解和川康地区不利的环境也是其放弃另立中央的一个重要原因。     

云南民族历史与文化的变迁--关于云南政治文化中心五百年一迁移的思考

云南历史在与祖国历史整体发展的前提下 ,有其自身的特点和规律 ,其突出特点便是云南历史发展的多民族多中心和每隔 5 0 0年左右便发生一次统治中心的周期性转移 ,作者对这一特殊规律进行了探讨。     

推进港城现代化 塑造中心城区新形象

文章对北仑城区城市化现状进行了分析，并提出了塑造中心城区新形象的建设原则与建设步骤．