滇泰经贸关系的现状、问题与发展前景

滇泰经贸关系从纵向来看已经有了很大发展,但人横向来比,特别是与滇缅与滇越经贸关系,还不尽如人意。目前泰国尚未摆脱经济危机,影响了滇泰经贸关系的进一步发展。中国加入世界贸易组织以及东盟自由贸易区的即将建成为滇泰经贸关系取得新的突破带来了前所未有的机遇。     

发展中的产业组织理论述评

作者从理论发展的角度探讨了西方产业组织理论的演化和发展过程，对20世纪80年代以来产业组织理论的新发展作了较为全面的述评。作者试图通过对各个时期不同学派理论观点和政策主张进行归纳和比较，揭示它们之间存在的各种联系和差异，并重点介绍了产业组织理论的最新发展态势，以便于应用它来为我国当前的社会主义市场经济建设服务。     

细胞凋亡研究进展

细胞“调亡”是细胞主动发生的自然死亡过程,是生物体借以拮抗有丝分裂所致的细胞增殖、调节细胞群体数目相对恒定的重要方式。调亡就象秋天枯萎的树叶一样慢慢地、悄无声息地从树干上飘零下来。细胞凋亡不仅是认识细胞死亡过程的基础,而且对胚胎发育、造血、免疫乃至肿瘤的研究都有及为重要的意义。细胞凋亡是细胞内死亡程序活化而导致的细胞自杀过程。凋亡大多发生在生理情况下,某些病理性刺激也可诱导细胞凋亡。     

基于部门利益视角的国民收入分配现象与思考

当前我国国民收入分配不公平的现象日益突出,这是财政的收入分配职能弱化的表现。究其原因可追寻到政府内部的"部门利益"问题。部门利益的固化与扩张,带来横向的部门财力割据,主宰了政府财政分配的权力;加剧了纵向上的财力上收,使地方财政困难,公共服务能力不足。改革决策与行政不分的行政体制和零碎化的财政分配方式,破解部门利益切割,就能有效实现财政的收入分配职能。     

Environmental disasters as risk regulation catalysts? The role of Bhopal,Chernobyl, Exxon Valdez,Love Canal,and Three Mile Island in shaping U.S. environmental law

Unexpected events such as environmental catastrophes capture wide public attention. Soon after five major shocks—Three Mile Island, Love Canal, Bhopal, Chernobyl, and the Exxon Valdez oil spill—Congress voted on new risk regulation. This paper conducts an event study to test whether individual congressional representatives were “shocked” by these environmental disasters into increasing their probability of voting in favor of risk legislation. On average, representatives were less likely to vote in favor of bills tied to these five events. Significant heterogeneity in representatives’ responses to these shocks is documented. Liberal Northeast representatives were most likely to increase their pro-environment voting in the aftermath of these shocks.

城市经营误入歧途之机制浅析

城市经营是近几年来城市管理和学术研究中的热点问题,但众多学者和城市管理者在城市经营的现实基础、内涵本质、所遵循的基础理论和所面临的问题等方面并没有取得一致的意见。虽然城市经营表现出的形式多种多样,但其内涵和本质是以提高城市竞争力为目标;城市经营的理论基础可以从蒂伯特模型、政府再造运动和布雷顿竞争性政府的概念中去寻找;片面理解城市经营不但会造成土地等城市资源枯竭、加重企业和群众负担以及城市负债过度,而且极易诱发金融风险;要防止城市经营走入歧途,不仅需要彻底解决地方政府财权事权不对等的问题,完善城市管理的立法工作,还需要全面反思城市的土地经营思路,规范政府行为和市场秩序的重建。     

证券市场监管结构分析

证券市场的监管体系通常是由证券法律规制、行政监管、自律监管、媒体监督共同构成的一个结构化整体。在证券市场监管总体中 ,各个组成部分各有其独特的功能和作用 ,它们相互补充又相互制约 ,共同形成证券市场监管结构均衡     

互联网金融纠纷解决与商事仲裁的运用

互联网金融作为新兴的金融创新模式,是传统金融服务体系的重要补充。基于互联网行业与金融行业相结合的特性,互联网金融面临着因技术安全与违约风险而引发的诸多复杂且多元化的纠纷。从解纷机制考量,商事仲裁的运用与互联网金融纠纷的特点相契合,具有纠纷解决专业化、效率化以及纠纷认可与执行广泛性的特点。对此,充分发挥商事仲裁的积极效用,无疑将促进我国互联网金融纠纷的顺利解决,从而维护互联网金融市场的稳定与发展。     

Perspective of practical biological control and population theories

We have not yet had sufficient theoretical explanation for successful biological control in which a key pest is controlled after an introduction of natural enemies. I compare here real features of successful biological control and theoretical host–parasitoid population models to reduce the gap between theory and practice. I first review the historical interaction between classical biological control projects and theoretical population models. Second, I consider the importance of host refuges in host–parasitoid population dynamics as concerns the mechanisms of low and stable host density. The importance of density–dependent parasitism through parasitoid reproduction in multivoltine host–parasitoid systems and supplemental generalist natural enemies are also discussed. Finally, I consider the difference in tactics for classical biological control and for augmentation of natural enemies in annual crop systems. Received: December 20, 1998 / Accepted: January 15, 1999     

Nonparametric Methods in Continuous Time Model Specification

Some popular parametric diffusion processes have been assumed as such underlying diffusion processes. This paper considers an important case where both the drift and volatility functions of the underlying diffusion process are unknown functions of the underlying process, and then proposes using two novel testing procedures for the parametric specification of both the drift and diffusion functions. The finite-sample properties of the proposed tests are assessed through using data generated from four popular parametric models. In our implementation, we suggest using a simulated critical value for each case in addition to the use of an asymptotic critical value. Our detailed studies show that there is little size distortion when using a simulated critical value while the proposed tests have some size distortions when using an asymptotic critical value in each case.