谈海洋生态产业园区的建设与发展——基于“张裕·卡斯特酒庄模式”的研究

近年来,作为一种新的产业组织形式,生态产业园区得到了广泛的关注,随着国家层面的生态产业园区建设项目不断增多,对于生态产业园区的研究成为热点。基于对张裕.卡斯特酒庄运营模式和海洋产业系统的研究,针对海洋经济的生态产业园区提出基于四大生态子系统的建设模式,以利于海洋生态产业园区的建设与发展。     

Análisis de portafolio por sectores mediante el uso de algoritmos genéticos: caso aplicado a la Bolsa Mexicana de Valores

The type of industry, size of company, number of employees, etc. are variables that are considered as control variables in a large number of articles. In this research we consider the sector variable as a determinant of financial performance (Baird et al. 2012) and the risk (Artikis and Nifora, 2011) rather than as a control variable. This paper analyzes six sectors of the Mexican economy divided according to the Mexican Stock Exchange: industrial, basic consumer products, materials, non basic consumer products, telecommunications and financial services. The sample consists of Mexican companies, that is, 30 companies in the 2007-2012 period. To measure portfolio performance two classic indicators are used: (1) Jensen alpha and (2) Sharpe ratio, and also conditional metrics are used that measures the number of times the portfolio return exceeds the market average. The goal is to find a portfolio that maximizes these parameters and compare the results between the different sectors under study. Due to a nonlinear programming problem, genetic algorithms are used to obtain the optimal portfolio that maximizes these metrics. The results show a better risk-adjusted financial performance in the field of materials and financial services and a lower performance in such sectors as the industrial and telecommunications ones.     

区位选择、地区差距与区域经济分割

产业的空间分布存在“倒U形曲线”。为了缩小与发达地区的差距,落后地区地方政府采取贸易和要素管制政策。这种政策导致发达地区产业的提前进入,出现了区域产业结构的趋同。为了保护本地市场,地方保护性政策得以产生并不断被自我增强,最终导致区域经济分割。通过中央政府的财政转移支付政策能够改变地方政府的最优政策选择,实现区域经济一体化。     

城乡统筹发展的微观解理:企业与农户和谐共生

作为城乡和谐共生的一个微观体现 ,基于供应链管理的企业与农户共生不仅有利于实现整个供应链竞争力的提升 ,实现企业与农户共赢 ,而且对于实现城乡协调发展、 构建和谐社会具有重要而深远的意义。涉农供应链中共生关系的发展遵循一条循环往复、 螺旋上升的路径 ,涉农企业与农户共生关系的维系和强化是涉农供应链构建、 发展的关键。因此 ,应营造有利于共生关系发展的良好共生环境。     

Linear Parks and the Political Ecologies of Permeability: Environmental displacement in São Paulo,Brazil

This article considers the politics of resettlement within ongoing efforts to construct the Tietê River Valley Park (Parque Várzeas do Tietê), a linear park that upon completion will be the largest linear park in the world. Located in the eastern periphery of São Paulo, Brazil, the proposed project uses riverbank naturalization to dampen floodpeaks and bring green space to underserved populations. Due to the presence of low‐income neighborhoods on the river's edge, however, the project calls for the removal of roughly 40,000 people. Drawing from urban political ecology and contemporary concerns about environmentally induced displacement, I consider the conflicts over resettlement that mark the project. I analyze the project itself and situate it within a regional context defined by autoconstruction, regularized flooding, and insecure tenure. I argue that despite claims that the project will yield less risky lives for displaced residents, the form through which the project is being developed actually puts displaced residents in heightened situations of risk. I consider how communities have organized to resist displacement, and call for an approach to governance in peripheral landscapes that takes seriously the histories of collective infrastructural provisioning and autoconstructed housing that have marked them for decades.     

The multi-organizational interaction approach to industrial marketing

A conceptual approach is presented for investigating interaction processes in industrial marketing.The interaction process is interpreted as a multi-organizational phenomenon which is characterized by indegenous episode variables and contextual factors. Empirical results using this interaction approach are discussed, and the importance of analyzing the influence of relative organizational attributes (relative to each organization involved in the interaction process) on the results of an industrial marketing transaction is stressed.     

企业资产及其微观基础

会计理论、管理理论、经济理论对资源、资产及企业资源、企业资产均有所论述,但三者之间却又存在着明显的差异。本文的研究表明:当贯彻经济学的微观基础分析方法时,经济理论中的资产和资源、会计理论中的企业资产、管理理论中的企业资源将取得逻辑上和形式上的统一,企业资源与企业资产在理论上是同义反复;但考虑微观基础的企业资产的外延和内涵将不同于传统会计理论中的企业资产;本文结尾还提出了加进微观基础的企业资产概念在理论和实践上的重要意义以及本文有待发展的地方。