粮食安全的价格理论框架及其应用

在建立特定非线性粮食供给和需求函数的基础上,发展了一个解析非线性均衡蛛网模型,表明一般性的粮食价格波动能够收敛,只有粮价超过一定幅度才发散震荡并形成粮食灾难.政策视角的粮食安全概念必须建立在国家层次,将粮价控制在安全区域内是粮食安全政策的主要内容,短期内通过粮食储备和价格政策控制粮价,长期内扩大粮食波动的安全区域.应用分析表明发展“生物燃料”、保持“耕地红线”有利于保证一国的粮食安全.     

逻辑转喻的认知语义阐释

以往对逻辑转喻的研究主要以Pustejovsky的生成词库理论为代表,但该理论对逻辑转喻的解释力不足。因而将逻辑转喻置于认知语义学视角下,基于Fillmore的语义框架理论和Croft的认知域凸显理论建构逻辑转喻的框架元素凸显模式,将逻辑转喻理解为概念转喻在句法层面的意义体现,逻辑转喻中充当论元的事物名词作为语义框架中一部分以认知凸显方式为整个语义框架提供心理可及。     

农民工融入城市与城乡社区互动网络平台建设——以江苏省为例

“推拉理论”认为,在市场经济和人口自由流动的情况下,人口迁移和移民搬迁的原因是人们可以通过搬迁改善生活条件.中国农民工流动是由来自流出地的推力和流入地的拉力双重共同作用的结果.社区是流动农民工融入城市的重要载体.建立集信息、服务、培训三维一体的城-乡社区互动网络模型,使农民工在农村、城市社区双方的努力下尽快融入城市.     

公民问责的理论基础与制度构架

契约理论阐述了人民主权和政府治权的逻辑关系,由契约演绎生成的政府责任是公民问责的逻辑前提,而公民问责则是保持公民与政府之间契约张力的有效路径。为此,契约论可以作为公民问责的理论基础。与其他问责方式相比,公民问责具有独特的价值。发展和完善我国的公民问责,关键是要营造公民问责的组织氛围,健全公民问责的制度安排以及加强公民问责的政策支持。     

多专业协作型创业模拟实践课程框架研究

为服务于创新型人才培养需要,江西财经大学开设了多专业协作型创业模拟实践课程,该课程以ERP为核心实现了系统化、一体化大综合模拟创业的教学,在培养学生的实践能力和创新创业素质过程中发挥了重要作用。本文对多专业协作型创业模拟实践课程架构进行了分析,提出了系统的课程框架。     

农民维权活动的理法抗争及其理论解释——两起征地案例的启示

基于对广西两个征地案例的研究,本文发现,农民维权抗争的实践逻辑,不能用现有的“日常反抗”、“法权抗争”和“规则模式”框架来解释。当地农民维权活动的一般性特征可称之为“理法抗争”,其行为理据、策略选择和目标制定都在合“理”合“法”的框架内。具体表现为：对被征土地的“待价而沽”、积极运用“拖”的抗争策略、在集体行动中并用“理”与“法”的行动策略,不使事态失控,不与地方政府交恶。农民的“理法”抗争,既根植于乡土社会,也因中国政府政治合法性的转变而导致的国家对稳定的刚性需求、地方追求经济绩效和维稳工作实践之间始终存在某种张力,正是这种张力促使农民在与地方政府争取拥有平等对话主体资质的抗争过程中形成某种“默契”。     

A process-oriented perspective on differential business value creation by information technology: An empirical investigation

The relationship between information technology investments and firm value as an area of inquiry has sustained interest among IS researchers over the past decade. More recently, some have challenged the notion differential value among firms through Information Technology (IT) as it evolves into a ubiquitous utility-like set of technologies. This study examines the relationship between IT and business value from a process-oriented perspective, and also helps to identify the underlying links between IT and its differential business value to firms. By drawing upon economic and organizational theories, this paper develops a process framework to assess the intermediate organizational process capabilities and overall performance of firms that effectively deploy and use IT. Using data from over 80 firms, the study finds empirical support for the differential business value created by IT along a number of process oriented dimensions. These findings are discussed as these results set an optimistic tone for IT as a major causal driver of differentiation.     

Decision‐making in child welfare services: Professional discretion versus standardized templates

The article explores differences in the assessment and decision‐making processes, in child welfare services where a standardized template is implemented and in services where it is not. Child welfare services in several countries use different approaches to assess children's and families' need for intervention. In Norway, as in other European countries, there is a shortage of knowledge about decision‐making strategies. The article examines how 36 child welfare caseworkers in 6 different teams in Norway investigate, assess, and make decisions at the phase of an incoming referral. The analysed data were collected by focus group interviews. We use decision theory as a theoretical frame of reference. The analysis shows variation in the assessment procedure at different points of the process, depending on which approach was used. Despite such differences, the final decisions made were almost identical. Even though the data has its limitations because of the small number of informants, the results indicate that choice of approach is not decisive for decision‐making in the child welfare services.     

Shards of the old looking glass: restoring the significance of identity in promoting positive outcomes for looked‐after children

There is a driving force within current UK child welfare policies which promotes a strengths led approach to both assessment and care planning for children in need. Social policy emphasizes the importance of tangible outcomes such as education achievement, which have been enshrined in statute. However, other developmental outcomes, such as identity, are subordinated. Notwithstanding the relevance of these more concrete indicators, this paper suggests that this focus has left a gap at theoretical, strategic and operational levels relating to more psychosocial aspects of human growth and development, such as identity. This paper seeks to redress that gap by considering identity as both a process and an outcome. Following a review of the literature on identity development, it presents an analysis of semi‐structured interviews with 13 young people and their social workers. The findings show how young people's identity is shaped by their relationships, can be a protective mechanism, and deferred or put on standby. In the concluding discussion the implications for social work practice are highlighted.     

A governance network perspective on environmental conflicts in China: findings from the Dalian paraxylene conflict

Employing the Governance Network framework, this article presents an in-depth case study of the conflict that evolved from 2003 onwards over the construction and operation of a paraxylene plant in Dalian, China. The study explores the usefulness of this framework as an empirical tool to describe and make sense of policy processes and governance in multi-actor situations in China. The analysis shows the lack of anticipation and deliberation by Chinese governments, resulting in the buildup of citizens’ concerns, mediated by social media beyond government control. This results in an outbreak of protest followed by uncoordinated governmental responses, with high costs for all parties. It is argued that, because of the underlying institutional causes, the challenges are even greater for Chinese governments to come to grips with the increasing need for internal coordination, deal with new social media, and balance economic and environmental values.