从产业经济学角度浅论我国物流业的发展

从产业经济学的基本理论入手,探讨如何正确认识我国的物流产业及其在国民经济中的地位,并结合我国实际,研究和评价我国物流产业的总体发展水平,分析物流产业的发展对策。     

独立审计质量的经济学分析

本文通过对审计质量的经济学分析,提出高质量的审计是增进契约效率的内生需要,中小股东和上市公司之间的“隐性契约”是推动审计质量提高的重要力量。我国特有的经济环境背景,决定了审计质量的提高存在着制度性障碍,审计质量是各方利益相互均衡的结果。     

Towards a kernel theory of external knowledge integration for high-tech firms: Exploring a failed theory test

Designing information systems (ISs) requires a thorough understanding of the organizational knowledge processes in which these systems are used. Although much is known about internal organizational knowledge processes, the understanding of external knowledge processes is less developed. Hence, this paper reflects an attempt to operationalize and test a model of the process of external knowledge integration (EKI), consisting of an identification, acquisition, and utilization stage. We utilize high-technology based firms from a variety of high-tech categories including nanotechnology based firms since these firms have critical knowledge integration needs. The results of an international survey, with responses of 317 high-tech companies, suggest that not these three EKI-stages, but four organizational effectiveness functions (goal attainment, pattern maintenance, adaptation, and integration) account for most variation in responses. These findings seem to imply that ISs that are to support the EKI-process should be designed according to organizational effectiveness functions rather than to EKI-stages. It is proposed that each organizational effectiveness function imposes different requirements on ISs because users interact differently with IS in each function.     

Cost effectiveness of benralizumab for severe,uncontrolled oral corticosteroid–dependent asthma in Sweden

Abstract

Aim: We investigated cost effectiveness of benralizumab vs. standard of care (SOC) plus oral corticosteroids (OCS) for patients with severe, eosinophilic OCS-dependent asthma in Sweden.

Materials and methods: A three-state, cohort-based Markov model of data from three Phase III benralizumab clinical trials (ZONDA [NCT02075255], SIROCCO [NCT01928771], and CALIMA [NCT01914757]) was used to assess the incremental cost-effectiveness ratio of benralizumab vs. SOC plus OCS. Health outcomes were estimated in terms of quality-adjusted life-years (QALYs). The model included costs and disutilities associated with extrapolated OCS-related adverse events. Patients with severe asthma were defined as those receiving OCS ≥5?mg/day.

Results: Benralizumab demonstrated a cost-effectiveness ratio vs. SOC plus OCS of 2018 Swedish Kronor (SEK) 366,855 (€34,127) per QALY gained, based on increases of 1.33 QALYs and SEK 488,742 (€45,344) per patient. Benralizumab treatment costs contributed most to incremental costs. The probability of benralizumab’s being cost-effective with willingness-to-pay (WTP) thresholds between SEK 429,972 (€40,000) and SEK 752,452 (€70,000) ranged from 75% to 99%.

Limitations: Potential limitations of these analyses include the use of combined data from three different clinical trials, a one-way sensitivity analysis that did not include mortality and transition estimates, and Observational & Pragmatic Research Institute (OPRI) data from the UK as a proxy of the Swedish health care system.

Conclusions: The results of these analyses demonstrate that benralizumab has a high probability of being cost-effective compared with SOC plus OCS for a subgroup of patients with severe, eosinophilic asthma receiving regular OCS treatment and may support clinicians, payers and patients in making treatment decisions.     

中国金融泡沫化研究:理论与实证分析

金融自身的泡沫化问题作为引发金融危机的一个重要方面 ,正成为金融体系乃至整个经济体系健康发展的重大威胁。这篇论文以中国金融泡沫化问题为研究对象 ,在剖析金融泡沫化成因的基础上重点对我国金融体系的泡沫化水平进行了实证分析。在分析过程中 ,文章分别从我国银行体系、股票市场和外汇市场选取了 12项经济指标 ,通过采用编制泡沫化指数的方法对 1992～ 2 0 0 1年十年间我国金融泡沫化水平的相对变动进行了量化分析。最后 ,文章还根据实证分析的结果对如何有效的控制我国金融体系的泡沫化水平提出了政策建议     

Sectoral Energy- and Labour-Productivity Convergence

This paper empirically investigates the development of cross-country differences in energy- and labour productivity. The analysis is performed at a detailed sectoral level for 14 OECD countries, covering the period 1970–1997. A σ-convergence analysis reveals that the development over time of the cross-country variation in productivity performance differs across sectors as well as across different levels of aggregation. Both patterns of convergence as well as divergence are found. Cross-country variation of productivity levels is typically larger for energy than for labour. A β-convergence analysis provides support for the hypothesis that in most sectors lagging countries tend to catch up with technological leaders, in particular in terms of energy productivity. Moreover, the results show that convergence is conditional, meaning that productivity levels converge to country-specific steady states. Energy prices and wages are shown to positively affect energy- and labour-productivity growth, respectively. We also find evidence for the importance of economies of scale, whereas the investment share, openness and specialization play only a modest role in explaining cross-country variation in energy- and labour-productivity growth.      

Assessment of regional trade and virtual water flows in China

The success of China's economic development has left deep marks on resource availability and quality. Some regions in China are relatively poor with regards to water resources. This problem is exacerbated by economic growth. Flourishing trade activities on both domestic and international levels have resulted in significant amounts of water withdrawal and water pollution. Hence the goal of this paper is to evaluate the current inter-regional trade structure and its effects on water consumption and pollution via ‘virtual water flows’. Virtual water is the water embedded in products and used in the whole production chain, and that is traded between regions or exported to other countries. For this assessment of trade flows and effects on water resources, we have developed an extended regional input-output model for eight hydro-economic regions in China to account for virtual water flows between North and South China. The findings show that the current trade structure in China is not very favorable with regards to water resource allocation and efficiency. North China as a water scarce region virtually exports about 5% of its total available freshwater resources while accepting large amounts of wastewater for other regions' consumption. By contrast, South China a region with abundant water resources is virtually importing water from other regions while their imports are creating waste water polluting other regions' hydro-ecosystems.     

我国西部欠发达地区发展生态工业的分析与思考

针对我国西部欠发达地区日益突出的生态环境问题,发展生态工业已成为构建和谐社会的重要举措。本文选取有代表意义的民族八省区作为西部欠发达地区的典型进行模拟预测,提出发展生态工业是协调贫困地区经济发展与环境状况关系的必要手段。     

基础设施与制造业发展关系研究

本文从历史与实证的角度 ,以中国改革开放 2 0年的实践为案例 ,用计量分析的方法测算基础设施与制造业发展之间的相互关系及相互影响的方向及程度 ,在此基础上提出了促进基础设施与制造业协调发展的建议     

中国城市化与生态环境耦合规律与实证分析

本文在阐明城市化与生态环境交互耦合含义的基础上,利用城市化的S型生长曲线和生态环境演变的倒U型曲线,演绎出城市化与生态环境耦合的规律曲线,并以中国的实际数据为例,进行实证分析。研究表明:(1)生态环境随城市化发展呈现出着先恶化、后改善的不规则倒U型耦合规律,但该规律曲线只是它们实际耦合的一种演变趋势;(2)1985～2005年间,中国工业废水排放量与城市化水平耦合表现出先倒U型和后U型的阶段特征,而这种特征曲线正是技术进步、产业结构高级化、人们环保意识的增强以及经济增长的压力等因素综合作用的结果。