失信联合惩戒规范化问题研究

随着失信联合惩戒在更大范围和更广领域的推广,个别地方在实践中出现了过罚不相当、惩戒措施泛化、"黑名单"管理失当等现象,需要引起高度关注。鉴于我国目前实施的部分行政性信用联合惩戒措施已属于行政处罚范围,应纳入法治规范。借鉴国外失信联合惩戒的主要做法,建议从以下三方面完善我国的失信联合惩戒机制:一是加快公共信用联合惩戒立法;二是实行联合惩戒目录清单制管理,使联合惩戒措施显性化、公开化、可预期;三是加快建立市场信用联合惩戒机制,形成市场信用联合惩戒机制和公共信用联合惩戒机制互通互动、协调发展的联合惩戒新格局。     

Precautionary Saving and Health Insurance: A Portfolio Choice Perspective

This paper analyzes the impact of health insurance on household portfolio choice. Using the U.S. Survey of Consumer Finance and Health Retirement Survey databases, it finds that insured households are more likely to own stocks and invest a larger proportion of financial assets in stocks than uninsured households do. The results remain strong even after controlling for household characteristics and reverse causality. Further, the results are robust across different survey years and data sources. It suggests that a precautionary motive is strong in household portfolio choice decisions.     

基于随机网络的废弃产品回收预测模型

针对闭环供应链的逆向物流环节部分,在分析废弃产品回收过程中各相关组织之间的动态关系的基础上,运用随机网络的相关理论,构建了以生产厂商为回收主导的废旧电器产品回收随机网络预测模型。该模型可以求出产品回收至生产厂商的概率、期望时间以及回收产品的数量。并以空调回收为例,进行案例分析。     

闭环产品服务系统的增值分析与协调机理研究

闭环产品服务系统中,提升价值增值的手段包括产品和服务两方面.在大量生产时代,产品的价值增值主要来自于原料转换的增值过程,这是“大产品小服务”的传统销售模式（服务是产品的附属品）.但随着消费市场需求的变化,目前价值增值不但来自于企业品牌形象、产品销售等前市场服务,而且越来越注重产品使用过程中的后市场服务和废弃后的回收再制造服务.产品服务和再制造的增值已经超过传统实体生产的价值创造,开始向“小产品大服务”的商业模式演进（产品成为服务的介体）.作为获取持久竞争优势的这一新盈利模式,闭环产品服务系统的提供商需要考虑全生命周期的经济效益和环境效益,涉及产品制造、服务运营和回收再造的交叉新领域研究,这必然会导致正向供应链的关系契约模式变革.     

汽车逆向物流的回收渠道策略

逆向供应链中,汽车旧件供给成为再制造生产的瓶颈,如何提高回收效率与激励汽车旧件的回收量是亟待解决的问题。通过对国外回收渠道政策的梳理,分析对比汽车旧件的自主回收模式、外包回收模式以及联合回收模式,提出促进汽车旧件回收数量与效率的策略建议。研究结果表明:汽车再制造企业应从实际出发,选择合适的回收渠道,建立与正向汽车产业链下游的企业合作伙伴关系,提高回收效率。     

杨树舌液体深层发酵条件筛选

以野生杨树舌为原料,运用液体深层发酵技术对杨树舌培养条件进行筛选,分别对碳源、氮源、培养温度、培养转速进行单因素试验。研究结果表明在自然p H下,2%碳源、0.3%氮源、培养温度24℃、转速150 r/min的培养条件下10 d,杨树舌的菌丝体生长状况最佳。此培养条件简单、合理、可行,可做野生杨树舌液体深层发酵培养条件。     

Termination Risk, Multiple Managers and Mutual Fund Tournaments

This study analyzes the risk-taking behavior of mutual fundsin response to their relative performance over the 1992 to 1999period. Our results show that managers of funds whose performanceis closer to that of the top performing funds have greater incentivesto increase their portfolios' risk than managers at the topwho exhibit a tendency to lock in their positions. The evidencesuggests that termination risk imposes a constraint on the risktaking behavior of underperforming fund managers and the winnertakes all phenomenon generates a strong incentive for the fundmanagers to be the top manager. We also analyze the differencein the risk taking behavior of funds managed by multiple managersand single managers. JEL Classification codes: G2 L2     

Debt Maturity Structure and Firm Investment

This study shows that the maturity structure of a firm's debt has a significant impact on its investment decisions. We show, after controlling for the effect of the overall level of leverage, that a higher percentage of long-term debt in total debt significantly reduces investment for firms with high growth opportunities. In contrast, the correlation between debt maturity and investment is not significant for firms with low growth opportunities. The results are strong at the firm level and at the business segment level. These results hold even after controlling for the endogeneity problem inherent in the relationship between total leverage, the maturity composition of leverage, and investment.     

设备折旧计提方法合理化探讨

本文通过设备折旧计提的合理化探讨,提出了折旧率特性曲线方程,基本上符合设备的价值转移方式和技术进步的要求。     

商务信用领域存在的问题与对策

近年来,商务信用领域存在着诚信缺失严重、交易风险大、中小企业融资难和融资贵等问题,应健全商务征信体系,大力发展商业保理,鼓励发展基于电子商务的互联网金融,规范开放商账追收行业等,以健全我国商务信用体系。