试论中国农业经济模式的嬗变

中国农业经济模式是中国道路、中国理论体系的基本组成部分。中国农业经过60余年的发展,历经新民主主义社会农业经济模式,高级农业生产合作社、人民公社制下的农业经济发展模式,家庭承包经营制下的农业经济模式,并且不断地通过农业经济技术创新、组织创新、制度创新,逐步形成了中国特色的农业经济模式。     

开放式创新下的企业知识产权运营初探

文章首先从开放式创新概念和分类入手,引出开放式创新下知识产权运营的背景和必要性,进而从理论分析切入,对开放式创新下企业为什么要重视知识产权运营进行了理论剖析,最后重点对开放式创新与知识产权运营的协同机制进行了研究。在开放式知识创新的条件下,中国企业只有建立和健全知识产权价值体系和知识产权运营体系,才能不断提高企业国际竞争力,并且在经济全球化的国际分工中,获得更大的经济利益。     

相关市场条件下国际寡头的策略行为及福利效应研究

本文在古诺双头模型的框架内分析了市场风险和相关因素对国际寡头策略行为和福利水平的影响。与传统模型不同,本文假设各国市场具有潜在相关的随机需求,且出口企业具有风险规避的态度,并利用博弈模型研究了市场风险和相关因子对成本竞争力优势形成的产出效应及国际寡头间串谋行为的影响。本文的推论表明:风险相关市场上贸易竞争形成的国家福利低于需求确定条件下的水平,然而,较之无贸易的情况却会形成更高的消费者剩余和社会福利水平,而企业利润水平的相对高低则取决于企业的市场风险态度、市场相关性系数和风险系数的特定组合。     

重庆直辖前后农村居民消费与收入纵向对比实证分析

本文运用Keynesian的绝对收入假设消费函数模型，充分考虑重庆直辖前后的差异，将消费与收入的数据分为直辖前和直辖后两个阶段分别进行协整检验并建立误差修正模型，然后对两个阶段所表现出的显著差异进行纵向对比分析，最后提出当前形势下刺激农村居民消费扩大的政策建议。     

Choice of flexible production technologies under strategic delegation

This paper analyzes a managerial delegation model in which firms can choose between a flexible production technology which allows them to produce two different products and a dedicated production technology which limits production to only one product. We analyze whether the incentives to adopt the flexible technology are smaller or greater in a managerial delegation model than under strict profit maximization. We obtain that the asymmetric equilibrium in which only one firm adopts the flexible technology can be sustained under strategic delegation but not under strict profit maximization when products are substitutes. We extend the analysis to consider welfare implications.     

基于VaR-GARCH模型对证券投资基金风险的实证研究

根据证券投资基金收益率序列的尖峰厚尾特征,建立估计基金风险的VaR—GARCH模型。在正态分布、t分布及GED分布三种不同的分布假设下,对基金的VaR值进行估计,并应用Kupiec失败频率检验方法对VaR模型的准确性进行了返回检验。研究结果表明,相比之下,基于GED分布的GARCH模型计算的VaR值最能真实地反映基金风险。     

古巴经济模式更新的历史路径与现实挑战

2011年,伴随古共六大的召开,古巴进入了社会主义模式更新的历史新阶段。古巴社会主义模式更新既是半个世纪以来古巴社会主义建设内在逻辑的历史延续,也是古巴社会主义为应对经济全球化挑战作出的时代选择。尽管古巴经济模式更新的未来仍存在诸多不确定性,但古巴高层锐意更新的决心和古巴社会必然经历的转型阵痛却是清晰可见的。进入2013年以来,古巴经济模式更新的步伐依然不减速,高层人事接连调整,经济举措密集出台,多元外交纵深发展,普通民众的工作与生活也随之发生着巨大的起伏与变化。面对经济模式更新大刀阔斧的调整和改革,古巴社会在渴求重生的同时,更承受着巨大的张力和考验。能否在理想与现实之间求得公平与效率的统一,将成为决定古巴经济模式更新成败的重要标尺。无论前景如何,坚持古巴道路的古巴经济模式更新都将是人类历史上一次对社会主义建设规律的有益探索和大胆尝试。     

Monopolistic competition with cross-country technological differences and international trade

We develop a two-factor, three-sector model of international trade in which there are cross-country technological differences in the monopolistically competitive sector. Firms in one country have a technology with high fixed costs and low marginal costs; firms in the other country have a technology with low fixed but high marginal costs. Under this model, although not under the monopolistically competitive model with identical technologies, trade patterns are determined by the interaction between the distribution of factor endowments (i.e., the Heckscher–Ohlin aspect) and technological differences in the monopolistically competitive sector (i.e., the Chamberlinian–Ricardian aspect). Furthermore, we show that autarky commodity prices are not very useful for predicting trade patterns, which is counterintuitive and again contrary to findings under the monopolistically competitive model with identical technologies.     

Cournot竞争条件下异质企业最优创新技术获取策略分析

针对现实经济中企业创新技术获取问题,首先运用包括创新及产出阶段的博弈模型分析了合作创新模式;然后构建了包括创新、许可及产出阶段的博弈模型,并根据此模型重点分析了技术许可模式;最后通过比较分析得出企业最优的技术获取策略。研究表明：当创新为非显著水平且产品差异较小时,技术许可模式下通过两部制策略许可将是最优的;当创新为显著水平或产品差异较大时,合作创新模式下的合资企业或卡特尔是最优的。     

中国出口退税分化政策条件下工业产业内部结构调整机制探讨

在出口退税分化政策条件下,文章加入有差别的出口退税率扩展一般均衡模型为出口退税分化政策条件下的工业产业内部结构调整机制的理论模型,并基于中国实施出口退税率分化政策后的18年间的出口退税率和工业产业内部结构调整的面板数据对该理论模型进行了实证检验。研究结果表明,出口退税分化政策条件下的工业产业内部结构调整机制是有效的。有鉴于此,在全球经济"再平衡"背景下,应继续完善适时、合理、有效的出口退税分化政策,与中国"十二五"规划的产业发展战略相配合,对资源性产业、低技术制成品业、中技术制成品业和高技术制成品业中各类不同技术水平、不同性质的商品,给予有差别的、有层次的梯形出口退税待遇,引导产业结构调整和优化。     

通货膨胀传导机制下工业企业主要行业经济效益变动趋势研究

通货膨胀传导的时滞性,是引发通货膨胀环境下工业企业主要行业经济效益变动的关键因素。应用工业企业主要行业投入产出表,分析各行业间通货膨胀传导机制,并创建通货膨胀传导模型,由此,创建了通货膨胀传导机制下我国工业企业主要行业经济效益变动趋势的预测模型。模型的创建对提高价格传导效率,建立低效益行业中企业的市场出清机制,实现资源的有效配置,具有重要政策意义。     

社会流动对村庄信任模式的冲击

在社会化条件下的传统型中国乡村,生产、生活、乃至交往都被卷入了一个开放、流动、分工的社会化体系之中,以往那个封闭、保守、内敛的传统乡村社会中的乡村信任模式在新的社会环境下受到了不可避免的冲击与影响。本文从社会流动对于传统村庄信任模式的冲击的角度思考在社会转型期条件下构建村庄信任模式的理性道路。     

The Optimal Enforcement of a Finance-Constrained Immigration Law

We extend the Bucci and Tenorio (1996) model of illegal immigration by constructing a two-country, one-good, two-factor model, and use a Cobb-Douglas production function to analyze political issues not considered in their work. We consider the case where capital is immobile between the two countries, as well as the case in which capital is mobile. Our main result is that the host country's government can, under some circumstances, optimally enforce employer sanctions in order to maximize the host country's welfare under both capital mobility and immobility.     

信息不对称、信号传递方式与供应商甄选博弈

论文从供应商传递信息方式的角度来研究信息不对称情形下供应商的甄选问题。研究首先将对称信息与非对称信息情况下供应商甄选结果及供需双方的收益进行比较．得出信息不对称导致供应链上供应商的逆向选择问题。然后运用信号传递成本无差异与信号传递成本有差异这两种类型信号博弈模型来解决不对称信息下的供应商选择问题，并得出结论只有信号传递成本在不同类型的供应商之间存在差异，信号才能起到类型显示的作用，从而解决信息不对称情形下供应商的甄选问题。     

基于向量AR(p)过程下的广义剩余收益估值研究

本文拓展出了基于P阶向量自回归过程的广义剩余收益估值模型;而且根据该拓展模型推导了盈余反应系数指标的理论公式;并以实例演示了：直接应用上述研究结论,著名的Feltham and Ohlson（1995）估值模型能很简单地推广到AR（2）过程版本,使该估值模型能利用更丰富的历史信息。     

新形势下的中国农村金融发展问题研究

农村金融改革和发展关乎社会主义新农村的建设大计,有其研究的理论与现实意义。本文在对中国农村金融市场局限条件下的均衡进行理论分析的基础上,对新形势下中国农村金融发展的模式选择作了尝试性的解答。     

MUTUAL FUND PERFORMANCE EVALUATION – APPLICATION OF SYSTEM BCC MODEL

For the first time, this research adopts the system BCC model in data envelopment analysis in order to evaluate mutual fund performance and compares the results between the BCC model and the system BCC model. This study is based on the sample of stock funds and balanced funds in Taiwan, with the empirical results summarised as follows. (i) Under the system BCC model, the average score of balanced funds is greater than the average score of stock funds. (ii) There is a significant difference in efficiency scores between the BCC model and the system BCC model, and it is proper to adopt the system BCC model. (iii) The number of major reference sets that have been referenced under the BCC model is larger than under the system BCC model. (iv) If we neglect the distinctions between stock funds and balanced funds, there will be errors on performance assessment. Ultimately, the results reveal that there is a significant difference between the two models. Provided no consideration is made for the funds belonging to two different systems, errors in performance evaluation are inevitable. This research provides investors with both a more accurate and comprehensive evaluation method.     

PPP项目再谈判中的利益再分配研究

利益再分配是PPP模式再谈判中的一项重要问题,合理的利益再分配能促进再谈判以及整个PPP项目的进行。基于Rubinstein讨价还价模型,建立了PPP模式下利益再分配模型,并对模型进行求解,得出了减少自身的出价时间等手段可以提升再谈判中利益再分配公平合理性的结论。     

The Effect of Social Capital on Fertiliser Adoption: Evidence from Rural Tanzania

Do the characteristics of local social structures affect fertiliseradoption among rural households? This paper extends the modelof technology adoption of Feder and Slade (1984) to incorporatesocial capital, and then tests the model with household datafrom two agro-ecological zones in rural Tanzania. Probit estimatesof the model show that the probability of adoption of improvedfertiliser in 1994–5 in the Central Plateau region isincreasing in land under cultivation, cumulative adoption patterns,ethnically based social affiliations, the adoption of improvedseeds, the availability of credit and extension services andthe average years of residence in the village. In the Plainsregion, this probability is increasing in land under cultivation,ethnically based social affiliations and consultative norms.Overall, these results, which are robust after testing for thelikely reverse causality of land under cultivation, supportthe finding that ethnically based and participatory social affiliationsact as forms of social capital in the adoption decision.     

Study on Optimal Contracts Model of Credit Default Swap Based on Principal-agent Theory

This paper studies moral hazards in credit default swap under asymmetric information. We employ principal-agent theory to construct credit default swap contracts analytical model, and research the optimal credit default characters under such circumstances. At last, some prevention methods of reducing moral hazards and optimizing credit default contracts are proposed.