低水分活度的预包装食品中菌落总数复查的研究

为了探讨食品抽检中菌落总数指标复检的可能性,通过对水活度较低的预包装食品乳粉、营养米粉、燕麦片、膨化食品、蜂蜜进行菌落总数测定,对低水分活度预包装食品菌落总数指标的稳定性进行分析。结果表明,同一批次、同一储存条件的未开封预包装食品在不同保存周期内菌落总数在统计学上无显著差异,本研究结果可为低水分活度预包装菌落总数的复查可行性提供参考依据。     

集体建设用地使用权流转可行性之法理分析

研究目的：研究集体建设用地使用权流转的可行性,为完善相关政策法规提出构想与建议。研究方法：文献研究法、比较研究法、实证研究法。研究结果：国家垄断建设用地使用权市场弊大于利,集体建设用地使用权直接入市则利大于弊。研究结论：应当实行国家严格控制下的集体建设用地使用权入市制度。     

Evolving splines and seasonal unit roots in weekly agricultural prices

The univariate statistical properties of agricultural price series need to be examined as a first step in the analysis of price transmission mechanisms. However, in the case of weekly price series, increasingly available, the testing procedures usually applied in this step are not suitable to deal with evolving seasonal effects. In this study, a method of testing for seasonal unit roots in weekly series of agricultural prices is described. When the deterministic seasonal component does not remain constant over time, the restricted evolving spline model (RESM) is shown to be a useful parametric formulation to capture the deterministic seasonal pattern. Therefore, the RESM model should be included as a deterministic component in auxiliary regression for unit root tests at seasonal frequencies. This proposal is applied to three weekly series of Canary Islands banana prices. From the standard seasonal unit root tests, the null hypothesis is failed to be rejected at the 5% or 10% significance level at some seasonal frequencies for each one of the series. Once critical values are obtained by simulation exercises when the RESM model is included, the hypotheses of unit root are rejected at each one of the seasonal frequencies for all of the three series.     

供应链金融的理论与实践概述

在经济全球化飞速发展和供应链管理理念不断深入的背景下,金融与供应链融合而缔造了供应链金融模式.供应链金融是一个处于物流、供应链管理、协作和金融交叉的全新的经营理念和运作模式,值得金融经营实体和供应链管理者的进一步关注与探讨.本文作为对供应链金融理论及实践的概述性文章,在国内外主要研究成果基础上,首次将其与物流金融进行了区别.同时归结了供应链金融的实践运作模式,并提出了供应链金融的发展趋势及进一步的研究方向.     

企业技术创新模式影响因素分析论证

通过分析企业自身状况、引进技术状况、产业状况和社会环境因素,对企业技术创新模式的影响因素进行分析论证,以此对企业选择创新模式提供借鉴。     

On the dynamics of inflation persistence around the world

We study the dynamics of inflation persistence in 45 countries for the period 1960–2008 using a recently developed test for multiple changes in persistence, which decomposes the sample information between adjacent I (0) and I (1) periods. We find that: (i) inflation persistence and average inflation tend to fall and rise at the same time; (ii) in some countries there are changes in the level of inflation which do not seem to be related to changes in inflation persistence; (iii) around half of the countries analyzed do not present any burst of I (1) behavior, and hence have stationary inflation throughout; (iv) for the other half, we detect switches of the type I (0) ? I (1) ? I (0), hence, inflation persistence, when it has occurred, has been temporal; and, (v) for about half of the countries in which inflation has presented I (1) behavior, persistent inflation lasted more than a decade. In addition, we find that in the last 50 years there have been mainly two episodes where long bursts of I (1) inflation took place simultaneously among groups of countries. In general, the “Great Inflation” occurred during the seventies and eighties in advanced economies, whereas it occurred during the eighties and nineties in emerging economies, particularly in Latin America.     

银行主导型金融对制造业企业技术进步的影响——基于技术距离的视角

制造业企业的技术发展离不开适宜类型的金融支持。那么,我国以商业银行为主导的金融体系对其具有怎样的影响？本文从技术距离视角出发,通过构建熊彼特内生增长模型探究银行主导型金融体系对制造业企业技术进步的影响效应及作用机理,并运用中国工业企业数据库与城市数据库的匹配数据进行实证检验。研究发现：当制造业企业远离技术前沿时,银行主导型金融对其技术进步具有明显的促进作用,但随着企业接近技术前沿,该作用将由正转负。相较于国有和抵押资产丰富的制造业企业,银行主导型金融对技术进步的负向作用在非国有和抵押资产匮乏企业中出现较早。机制检验表明,在远离技术前沿阶段,银行主导型金融能够激励制造业企业创新从而促进其技术进步,但在接近技术前沿后,银行主导型金融难以通过激励企业创新驱动其技术进步。研究结论对如何深化金融供给侧结构性改革、增强金融服务制造业之功效具有一定的指导意义。     

Easing the assessment of emerging technologies in technology observatories. Findings about patterns of dissemination of emerging technologies on the internet

This paper considers the Web as a big data container that can be used by Technology Observatories and administrations to track emerging issues and more specifically emerging technologies. It considers information that is available on the Internet for free from different sources, and proposes a framework that can be useful to characterise them and to detect patterns of dissemination. This framework is made up of 30 metrics obtained from different kinds of sources (general web, patents, scholars?…). Some of them are obtained directly as the number of hits retrieved by queries on a search engine, and other ones calculated by means of ratios. This paper contains the development of a complete case that utilises this framework to characterise emerging technologies included in the well-known Hype Cycle for Emerging Technologies, in this case the 2015 release¹ and to analyze patterns of dissemination of these technologies on the Internet.     

新兴市场后发企业逆向创新路径研究

作为一种全新的创新全球化扩散模式,逆向创新理论研究尚处于起步阶段。选取华为公司作为逆向创新研究案例,从技术和市场两大维度探讨其逆向创新发展模式,总结其可以复制推广的经验和做法,并提出新兴市场后发企业逆向创新路径与驱动力模型。在丰富并发展逆向创新理论的同时,也为中国企业特别是后发高科技企业提高创新能力以及加快国际化进程提供了借鉴与启示。     

INFRASTRUCTURE PROVISION,POLITICS AND RELIGION: INSIGHTS FROM TUNISIA'S NEW DEMOCRACY

This paper analyzes the relationship between access to infrastructure services and support for religious parties based on the evidence produced by a recent democratic experience in Tunisia in which a religious political party, Ennahdha, governed from 2011 to 2014. The experience points to a complex relationship. In the 2011 election, areas with higher access are associated with higher support for Ennahdha than areas with lower access. In the 2014 election, however, infrastructure access is positively correlated with support for the party in areas where access had improved but negatively correlated with support for the party in areas that already had high access. A possible pragmatic general implication is that, to be politically competitive, religious parties, cannot bet solely on their religious commitment to provide basic services, including infrastructure, to the poor. They need to recognize the multiplicity of voter's concerns and their evolving agenda.