European‐Type Contingent Claims in an Incomplete Market with Constrained Wealth and Portfolio

This paper considers the problem of hedgeability and replicability of European‐type contingent claims in an incomplete market with the wealth and the portfolio possibly being constrained. For the case of no constraint, using the idea of a Four Step Scheme (Ma, Protter, and Yong 1994), we prove the replicability of a class of contingent claims (including European call and put options) without assuming ad hoc technical conditions. For the case with the wealth and portfolio being constrained, several positive and negative results concerning hedgeability and replicability are presented.     

Market integration and convergence to the Law of One Price: evidence from the European car market

This paper exploits the unique case of European market integration to investigate the relationship between integration and price convergence in international markets. Using a panel data set of car prices, we examine how the process of integration has affected cross-country price dispersion in Europe. We find surprisingly strong evidence of convergence towards both the absolute and the relative versions of the Law of One Price (LOOP). Our analysis illuminates the main sources of segmentation in international markets and suggests the type of institutional changes that can successfully reduce it.     

The restructuring of the Spanish integrated steel industry in the European panorama (1971–86): A lost opportunity

Spanish steelmaking policy in the 1970s and early 1980s was not especially different from that of the main European countries. The political transition was a tense experience that heightened the problems and made economic policy decisions harder to reach, but it did not cause a fundamental divergence from the rest of Europe. What made the steel restructuring policy fail and forced a new and costly restructuring in the 1990s, was the decision of the Socialist government, newly elected in 1982, to opt for maintaining the inland steelworks instead of the coastal steelworks. Its motives were related to the locations of these steelworks in socially and politically sensitive areas. The closure of Sagunto marked the end of the only real possibility of Spain having a competitive integrated steelworks in terms of its integration into Europe.     

In landscape management all of us have something to say. A holistic method for landscape Preservability evaluation in a Mediterranean region

Landscape assessment methods have traditionally valued the landscape through a panel of experts with little or no participation of the population. However, after the adoption of the European Landscape Convention (ELC), the perception and the participation of the population has played an increasingly important role in landscape evaluation and planning. In this regard, the goal of this paper is to develop a model able to evaluate and integrate both the objective and subjective landscape factors into a new concept: the Preservability. This model, as well as selecting and classifying the landscape attributes according to the bio-geographic features of the study area i.e., Ricote Valley (Region of Murcia, Spain), includes two online surveys: one to assess the populatiońs landscape preferences and the other to obtain the specific weight of each objective and subjective landscape factor from a panel of experts. These landscape factors were incorporated into a GIS. To obtain the best model, the Preservability was assessed from three different approaches: objective, objective-weighted and weighted. The final results demonstrate how the Preservability weighted method returns different thresholds appropriate to the landscape attributes, the population’s perceptual preference and the protected areas. The different thresholds allows for priority areas to be identified for protection, as well as the adoption of appropriate management and planning strategies according to the landscapes characteristics, current state and uniqueness.     

Geographical indication regulation and intra‐trade in the European Union

Protection of indications of geographical origin (GIs) can reduce information asymmetry between producers and consumers, and potentially enhance trade. However, GIs can also possibly divert trade. We rely on panel data about agri‐food trade among the 27 countries of the European Union to investigate these issues using variations of estimators proposed by Head and Mayer ( 2000 ) and Santos Silva and Tenreyro ( 2006 ). Our findings suggest that the protection of GIs creates trade when the importing and exporting countries have GI‐protected products. There is also empirical evidence regarding a trade‐diverting effect when the importing country does not have GIs and a border enlargement effect arising from European GI‐protection.     

浅析桥梁施工质量控制要点

随着我国城市化进程的快速推进,桥梁的建设步伐正在以前所未有的规模在全国各地展开,但频繁出现的质量与安全事故使桥梁的施工管理问题也越来越成为人们关注的焦点.本文就桥梁施工质量控制要点进行初步探讨.     

欧美债务危机对我国电子商务业的影响及策略探析

尽管欧美债务危机的肆虐使得我国电子商务业面临业务扩展受限,行业盈利率下降,融资困难等问题。但同时也为国内电子商务业提供了市场机会增加,转型意识得以提升,获得定向宽松政策扶持,海外投资和效益凸显等机遇。因此,国内电子商务业应积极通过转变发展方式,审慎选择融资渠道,提高非系统风险防范力度等措施实现自身又好又快发展。     

工作生活质量的研究述评

工作生活质量是在社会技术系统理论的基础上,在员工需求发生极大变化的时候出现的新概念,并引起国内外学者的极大关注。学者们对工作生活质量的概念内涵、内容维度以及测量进行了大量研究,其中也存在不可忽视的问题：工作生活质量没有统一的概念,而且其内涵也过于空泛庞大;工作生活质量的内容维度模糊,独立性差;对工作生活质量的测度具有片面性,缺乏具有良好信度和效度的测量工具。     

Why do European consumers smoke? Responses from the rational addiction model

In this paper, we test whether European consumers are addictive smokers and, if this is the case, then whether such addictions can be explained by the rational addiction theory. To this end, we start from a non‐separable intertemporal utility function, which allows us to derive a demand function that is estimated using tobacco time‐series. The results are in accordance with the model of rational addiction for all European smokers. Thus, we observe the addictive character of tobacco consumption and, secondly, we note that the addiction is not the result of myopic consumer behaviour, but rather of the maximization of total utility, implying that consumers consider the future effects of their current decisions.     

现代物流企业质量管理体系建立及其实证分析

质量是物流企业的生命线，是物流企业获得竞争优势的关键。分析物流质量的内涵及其特殊性，认为应该从物流时间、物流成本、物流效率三个方面来衡量物流企业的质量。文章运用实证分析方法，分析了连云港物流业的SWOT，提出了完善质量管理体系和运行机制的一些做法。