Effects of scale economies and production seasonality on optimal hub locations: the case of regional fresh produce aggregation

Interest in supporting local and regional food systems is rising and food hubs have attracted considerable attention among Federal, State, and local policymakers. This study explores the problem of endogenous hub location in fresh produce value chains in the Northeastern United States. To overcome limitations in the literature, we incorporate the effects of economies of scale and production seasonality into our models. Three experimental models are designed to examine the effects of alternatively applying yearly, quarterly, and monthly data on model solutions. We explicitly assess how interactions of scale economies and seasonality influence the structure and spatial attributes of an optimal regional produce aggregation hub system. The three models generate marketed different solutions and in many respects they lead to different conclusions about developing local/regional supply chains. The monthly model allows for production seasonality and actual hub operation cycle frequency and thus leads to more efficient hub solution with rich policy implications.     

The best way of bilateral special economic zone to Sino-Vietnam economic cooperation

The Bilateral Special Economic Zones is a new idea about economic co-operation ways. It is going to be set by both countries with a common boundary for promoting the economic co-operation between two sides. It can be firstly set along the boundary between China and Vietnam. It will promote the economic co-operation between them, but China and ASEAN. It can be set along the Chinese boundary with the neighboring countries and will promote the economic co-operation between the both sides for setting up a better environment around China.     

高职高专实习基地建设—模拟证券交易系统的计算机实现

为培养学生的动手能力，高职高专实习基地建设刻不容缓，本介绍了利用计算机来模拟实现证券交易系统。     

把未成年人教育摆在全社会的优先位置

未成年人教育关系到全社会的可持续发展。《中共中央、国务院关于进一步加强和改进未成年人思想道德建设的若干意见》指出：要“从树立和落实科学发展观，坚持以人为本，执政为民的高度，充分认识加强和改进未成年人思想道德建设的重要性和紧迫性”。胡锦涛总书记强调，加强未成年人思想道德建设要“遵循未成年人思想道德建设规律，以人为本”。     

从“江阴板块”看苏南乡镇企业的新发展

苏南乡镇企业能否实现与现代市场经济的有效对接是社会各界广泛关注的重要课题。可喜的是，作为苏南乡镇企业的发源地之一，进入９０年代以来，江苏无锡地区的江阴市，一大批乡镇企业积极实施资本经营战略，从１９９７年至今的短短几年间，已有１０家公司上市，形成了中国股市     

一种新型电磁式导引器

介绍一种以负阻抗L－C振荡为基本环节的电磁式导引器，分析了其工作原理，给出了实验线路框图及位移特性。     

证券法上的民事责任功能研究

我国证券市场在短短十几年的时间内,在募集资金、推动国有大中型企业改制、优化资源配置等方面发挥了不可替代的重要作用.但不容乐观的是伴随着证券市场的发展各种违法违规现象在不断发生.尽管我国对证券违法行为明令禁止,并对严重的违法行为加以行政处罚甚至刑事制裁,然而证券市场上的违法行为仍然禁而不止.究其原因,除了管理层对证券市场发展的总体政策摇摆不定,监管者对违法行为处理不力等因素外,证券法上未建立完善的民事责任制度是重要的原因.本文从证券法上的民事责任功能的探讨入手,阐述了证券法上的民事责任具有的功能是证券刑事责任、行政责任所不能替代的原因,进而论证了建立完善的证券民事责任的必要性.     

沙可夫的领导艺术

作者对战争年代中国卓越的无产阶级文化战士沙可夫的领导艺术进行了深入的分析和高度的概括：沙可夫在极其恶劣的环境下，以高度的政治智慧、精湛的业务能力和高尚的品质出色地领导了苏区、延安和晋察翼边区的文化事业和戏剧运动，给后人留下许多宝贵的精神财富和无价的启示。     

进口贸易与经济增长的研究综述

近年来国内外学者逐渐关注进口促进经济增长的问题，并在学术杂志上发表了相关研究文献。本文试图对进口与经济增长关系的研究进行简要的梳理和回顾，同时做出相应的评论，希望能对问题的深入探讨提供某种帮助。     

多路自动转换电路应用初探

本文阐述了用TTL单片集成电路构成多路自动转换电路的方法及转换电路的工作原理和实际意义。