中国转基因食品安全管理的现状及对策

转基因食品是当今世界各国基因研究的重点。我国的转基因技术发展迅速,但科学界在转基因食品对人类健康和生态风险方面的认识存在局限性,政府应制定相应的政策、措施对其进行安全管理。本文介绍了转基因食品的概念及在我国的发展情况,分析了我国转基因食品安全管理的现状,阐述了转基因食品安全管理的重要性,并针对其中存在的问题,提出相应的对策。     

基于平衡计分卡的物流企业绩效评价指标体系研究

提出了物流企业绩效评价的基本原则，并以平衡计分卡的基本原理为依据，从财务、客户、内部业务流程、学习与发展等方面研究了物流企业绩效评价指标体系。     

发挥热电联产的优势推动城市集中供热发展

热电联产集中供热是节约能源、减少环境污染的重要措施之一.目前我国热电联产集中供热的发展机遇和挑战共存,应发挥热电联产的优势,推动城市集中供热的发展.     

积极财政政策宏观经济效益分析——基于宏观计量模型的研究

本文通过一个宏观计量模型来研究积极财政政策的宏观经济效益。与传统模型所不同的是，我们的模型不仅考虑了需求，同时也引入了社会的供给能力。研究表明，积极财政政策的实施为我国在2003年底彻底走出通货紧缩的阴影作出了不可磨灭的贡献。而到了2002年，积极财政政策的拉动效应开始递减，这为此后逐渐淡出的积极财政政策提供了一定的依据。     

On a clear day you might see an environmental Kuznets curve

We shed some new light on the Environmental Kuznets curve (EKC) and show how it can be viewed as a particular form of equilibrium relationship, where technology and preference parameters determine the shape of the curve. In contrast to most of the literature on the EKC, we estimate a theoretically consistent model on long-run data (Swedish sulfur emission, covering the period 1900–2002). Furthermore, we test and date structural change. The model suggests four regimes, 1900–1918, 1919–1933, 1934–1967 and 1968–2002, generating four rather different patterns for pollution over time. The policy-conclusions are consonant with Pearce’s general view about the EKC: there is no theoretical presumption that it has an inverted U shape, nor should any country try to “grow out of the environmental problems” without analyzing the benefits and costs of so doing.     

A hierarchical model of the determinants of non-performing assets in banks: an ISM and MICMAC approach

The banking systems of emerging economies in general and India in particular are facing sustained impairment due to mounting non-performing assets (NPAs). In the absence of stringent policies and their implementation, the results will be detrimental and may eventually lead to an economic crisis. Thus, it is imperative to unearth the causal factors and mitigate the risks involved with rising NPAs. The study attempts to identify the determinants of NPAs from the existing literature and subsequently, explore the interlinkages between the identified factors. A model of these factors is developed using Interpretive Structural Modeling (ISM) and MICMAC approach. Key managerial insights were obtained by the suggested model, specific to the Indian context. The hierarchical model provides a clearer perspective about the relationship between the factors and suggests that economic conditions and political factors are the key drivers which impact the ownership pattern and adherence to the regulatory framework; these further impact the internal factors related to the banks and borrowers’ capacity to repay. The study will act as a scaffolding for policymakers and bankers. Based on these findings, better instruments and mechanisms for recovery/management of NPAs can be put in place.     

The Effects of Public Ownership and Regulatory Independence on Regulatory Outcomes

We examine the effects of public ownership and regulatory agency independence on regulatory outcomes in EU telecommunications. Specifically, we study regulated interconnect rates paid by entrants to incumbents. We find that public ownership of the incumbent positively affects these interconnect rates, and suggest that governments influence regulatory outcomes in favor of incumbents in which they are substantially invested. However, we also find that the presence of institutional features enhancing regulatory independence from the government mitigates this effect. In order to study regulatory independence, we introduce a new cross-country time-series database—the European Union Regulatory Institutions (EURI) Database. This database describes the development of institutions bearing on regulatory independence and quality in telecommunications in the 15 founding EU member states from 1997 to 2003 *We thank Laurent Pipitone for superb research assistance. Geoff Edwards thanks the Sasakawa Foundation and the Institute of Management, Innovation and Organization at the Haas School of Business for generous financial assistance, and London Business School for non-financial support. Leonard Waverman thanks the Global Communications Consortium for support     

Regulatory and environmental effects on public transit efficiency: a mixed DEA-SFA approach

This paper assesses the impact of regulatory and environmental factors and statistical noise on the efficiency of public transit systems within a DEA-based framework. Using a panel of Italian companies, we implement a DEA-SFA mixed approach based on [H.O. Fried et al. (2002) Journal of Productivity Analysis, 17(1–2), 157–174] to decompose DEA inefficiency measures into three components: exogenous effects, managerial inefficiency and stochastic events. Besides providing evidence on the determinants of input-specific efficiency differentials across companies, the results point out that managerial skills play a minor role, and emphasize the relevance of regulatory policies aimed at replacing cost-plus subsidization with high-powered incentive contracts as well as improving environmental conditions of public transit networks.      

Learning of cycles and sunspot equilibria by Genetic Algorithms

We analyze the learning behaviour of a Simple Genetic Algorithm in an overlapping generations model with one consumption good and fiat money. It is shown by simulations, that in cases where periodic equilibria exist the equilibrium of period two is learned by a Genetic Algorithm and not the monetary steady state. We further show that proper coding leads to convergence of the GA towards the sunspot equilibrium. If individuals who believe in the impact of sunspots are brought together with individuals who ignore the sunspots, the sunspot believes will in most cases drive the other individuals out of the population.     

基于“消亡模式”的并购企业文化整合

并购企业的文化整合方式有多种模式选择。在论述“消亡模式”文化整合及其适应条件下,对并购企业采取“消亡模式”文化整合的过程和方法进行了探讨;提出了从全新的心智模式上升为企业的规章制度,并形成新的企业文化过程中,管理职能所起的特定作用;结合联想并购IBM全球PC业务案例,进行了应用分析。