Adoption of weather‐index insurance: learning from willingness to pay among a panel of households in rural Ethiopia

In this article we examine which farmers would be early entrants into weather‐index insurance markets in Ethiopia, were such markets to develop on a large scale. We do this by examining the determinants of willingness to pay for weather insurance among 1,400 Ethiopian households that have been tracked for 15 years as part of the Ethiopian Rural household Survey. This provides both historical and current information with which to assess the determinants of demand. We find that educated, wealthier individuals are more likely to purchase insurance. Risk aversion is associated with low insurance take‐up suggesting that models of technology adoption can inform the purchase and spread of weather index insurance. We also assess how willingness to pay varied as two key characteristics of the contract were varied and found that basis risk reduces demand for insurance particularly when the price of the contract is high, and that provision of insurance through groups is preferred by female headed households and individuals with lower levels of education.     

中国与木质家具主要出口国的贸易竞争关系分析

运用产品相似性指数、市场相似性指数和显示性比较优势指数,分析中国与德国、意大利、马来西亚、波兰和越南等木质家具主要出口国在国际木质家具市场上的竞争关系,结果表明:中国与越南、马来西亚木质家具出口的市场相似度很高,但产品相似度较低;中国与意大利、波兰木质家具出口的市场相似度较低,产品相似度较高;意大利、德国木质家具产业的比较优势相对较弱且在萎缩,而波兰木质家具的比较优势极强。针对中国与木质家具主要出口国的这种竞争关系,提出中国木质家具产业应将低端产能逐步向东南亚国家转移,承接意大利、德国的家具产业转移,并积极应对波兰的竞争等对策建议。     

中国粮食生产空间布局变迁实证

中国的粮食生产空间布局区域特征明显,了解中国粮食生产空间布局变化特征及影响因素对于制定合理的粮食生产政策具有重要意义,文章运用空间计量经济学Moran I指数及Panel Data模型,分析了中国31个省级区域粮食生产空间布局特征及其影响因素.     

基于神经网络的制造业企业供应链合作绩效模糊综合评价

本文应用主成分分析法,对制造业企业供应链合作绩效的评价指标进行了研究,建立了适用于制造业企业供应链合作绩效评价的指标体系。运用神经网络确定模糊综合评价中的权重值,克服了现有其他方法主观性判断的不足。提出了制造业企业供应链合作绩效模糊综合评价模型。最后利用该模型进行实际应用分析,验证了该模型的有效性。     

中国股市波动有限理性归因实证分析

基于中国股市波动特征构建了中国股市的两类机构投资者（积极投资策略和保守型投资策略的机构投资者）投资理性模型。随后,借助计量软件对上证指数的时序数据和这一模型生成的数据进行拟合分析．分析这两个有限理性投资者对上证指数的超额波动所起的作用。最后,利用格兰杰检验法．检验这些变量之间的解释程度。     

上海外高桥保税区发展水平的集成综合评价研究

本文首先建立了上海外高桥保税区发展水平综合评价指标体系,然后针对不同综合评价方法得出的评价结果可能存在差异的现象,结合模糊综合评价和因子分析的特点,提出了一种把模糊综合评价和因子分析相结合的集成综合评价方法,并对上海外高桥保税区发展水平进行了横向和纵向集成综合评价。应用表明,该集成综合评价方法比单一方法更加全面和有效。     

中国知识服务业国际竞争力研究

中国知识服务业的发展还处于初步阶段,国际竞争力水平存在较大差异,中国要建立创新型社会,就要注重知识服务业的发展,要从战略高度制定知识服务业相应的发展规划,建立相应的支撑体系,发挥政府职能作用,培养和引进专业人才,发展壮大知识服务企业等。     

股指期货对股票市场投资主体的影响分析

股指期货的推出是我国资本市场壮大发展的推动力,也是我国资本市场的一场革命。它的推出对股票市场投资主体的投资理念、投资结构、投资策略和投资行为等方面都会产生巨大的影响,研究这些影响对于投资者在新环境下转变投资理念、投资策略等具有一定的理论价值和现实意义,对进一步完善我国资本市场体系也有着积极的作用。     

企业持续创新能力评价指标体系的构建与模糊综合评价

动态复杂市场环境下,持续创新是任何企业持续发展的根本.笔者在企业持续创新能力理论评述和相关理论界定的基础上,构建出企业持续创新能力评价指标体系,并运用模糊综合评价法对企业持续创新能力进行评价与测度.这对企业识别持续创新的关键因素、挖掘瓶颈因素进而实现持续创新具有现实指导意义.     

The behaviour of producer prices: evidence from French PPI micro data

This paper provides some new empirical findings for how French producers set prices. We used the micro data that composes the producer and business-service price indices from 1994 to 2005. First we address how producer prices are collected. Then we present the main characteristics of how producers change their prices: they are modified infrequently and in small amounts. Also, a behavioural heterogeneity across sectors is observed. Business-service prices change less often than industrial producer prices. The data corroborates both time and state-dependent model predictions. Taylor contracts are not unusual, but a firm’s prices will also react to its economic situation. Nevertheless, the most relevant models, to explain producer price rigidity, are time-dependent.

“The fact that some prices are rigid or sticky, while others are variable, has attracted a good deal of comments from economists in recent years” Tucker (1938)

This study was conducted in the context of the Eurosystem Inflation Persistence Network. Data were processed under the responsibility of INSEE in the context of an agreement between INSEE and the Banque de France (20B-21B-E301/R05019/2005).