新冠肺炎对江苏省商贸流通业的影响与应对措施

2019年底、2020年初,一场猝不及防的新冠肺炎(NCP)病毒突袭我国的武汉地区。在地点上,武汉地区是京广线的重要节点城市,长江水运与京广铁路构成中国交通十字形的重要枢纽;在时间上,正逢中国传统春节,是中国节日经济的一个重要时期。病毒的“精准投放”并蔓延,在全国造成了严重后果,使全国上下纷纷动员进行应对,造成社会生活的暂停和群众生活的困难,对我国经济发展产生了重大影响,江苏商贸流通业也不例外地受到重创。江苏在中央的英明领导下进行了坚决的防治,商贸流通业也做了大量的工作,后期将继续做好止损增销工作。     

Stock market comovements around the Global Financial Crisis: Evidence from the UK,BRICS and MIST markets

This paper analyses stock market co-movements around recent crises and explores the international portfolio diversification benefits available for UK investors holding a portfolio in the BRICS and MIST emerging markets. The application of conventional and regime-switch cointegration techniques suggests an absence of diversification benefits. Further evidence from application of a multivariate time-varying asymmetric model (i.e. AG-DCC) suggests that conditional correlation among the stock markets exhibits higher dependency when it is driven by negative shocks to the market. The asymmetric causality test provides supporting evidence of the decoupling hypothesis. The results indicate that the Chinese stock market is the most attractive option for the UK investor.     

A model for planning locations of temporary distribution facilities for emergency response

We propose a network flow model for dynamic selection of temporary distribution facilities and allocation of resources for emergency response planning. The model analyzes the transfer of excess resources between temporary facilities operating in different time periods in order to reduce deprivation. Numerical analysis shows that the location of temporary facilities is determined by the demand and supply points. This work contributes to the emergency response planning that requires a quick response for the supply of relief materials immediately after a disaster hits a particular area.     

Resource conflict detection and removal strategy for nondeterministic emergency response processes using Petri nets

Correctness of an emergency response process specification is critical to emergency mission success. Therefore, errors in the specification should be detected and corrected at build-time. In this paper, we propose a resource conflict detection approach and removal strategy for emergency response processes constrained by resources and time. In this kind of emergency response process, there are two timing functions representing the minimum and maximum execution time for each activity, respectively, and many activities require resources to be executed. Based on the RT_ERP_Net, the earliest time to start each activity and the ideal execution time of the process can be obtained. To detect and remove the resource conflicts in the process, the conflict detection algorithms and a priority-activity-first resolution strategy are given. In this way, real execution time for each activity is obtained and a conflict-free RT_ERP_Net is constructed by adding virtual activities. By experiments, it is proved that the resolution strategy proposed can shorten the execution time of the whole process to a great degree.     

流行病应急响应的国际合作——联合国领导下的禽流感防疫机制透析

随着跨国公共卫生安全在全球治理中分量日益加重,流行病应急响应（Epidemic preparedness and response）的国际合作逐步被提上了全球日程。2005年,人感染高致病性禽流感在全球范围内的大规模传播,国际社会尤其是联合国领导下的相关组织如何构建防疫机制来应对这一形势成为焦点。经过多年的努力,联合国领导下的禽流感防疫机制日臻完善,该机制主要包括核心领导机构、法理基础、重要应急措施以及相关国际行为体参与4个方面。同时,该机制的有效性与局限性并存,值得引起人们的注意。     

PRICING FOR LARGE POSITIONS IN CONTINGENT CLAIMS

Approximations to utility indifference prices are provided for a contingent claim in the large position size limit. Results are valid for general utility functions on the real line and semi‐martingale models. It is shown that as the position size approaches infinity, the utility function's decay rate for large negative wealths is the primary driver of prices. For utilities with exponential decay, one may price like an exponential investor. For utilities with a power decay, one may price like a power investor after a suitable adjustment to the rate at which the position size becomes large. In a sizable class of diffusion models, limiting indifference prices are explicitly computed for an exponential investor. Furthermore, the large claim limit arises endogenously as the hedging error for the claim vanishes.     

季节性旅游的地方响应研究——以广交会展馆内外翻译为例

广交会是目前我国最大的综合性国际贸易盛会,每年都吸引了大量国内外客商到场参加。本文以广交会场馆内外的翻译工作者对广交会的响应情况作为研究重点,通过对广交会翻译的问卷调查及访谈,分析和研究广交会翻译对于广交会这一季节性旅游的地方响应。响应的人群主要为学生及社会工作者,其响应的方式可分为学校组织与个人自发响应。翻译工作者在广交会的这种季节性的旅游效应下不仅获得了学习和锻炼的机会,而且可以赚取更多的兼职收入,他们都对广交会的工作有较高的评价。     

Consumer response to food labels in an emerging market: the case of Romania

This study investigates consumer response to food labels in an emerging market. More specifically, it measures the levels of awareness, objective and perceived understanding, perceived usefulness and perceived trustworthiness of the most prominent food labels found in the Romanian market. An online survey was conducted with a convenience sample of 428 respondents (45.6% males of an average age of 30.6 years). Results revealed that for most respondents, awareness levels towards food labels are generally low, except for the Guideline Daily Amount (GDA) and the organic food labels. Objective understanding towards food labels was relatively high, especially towards those food labels that included a clear text element. Perceived understanding, perceived usefulness and perceived trustworthiness were found to be consistently high with regard to the GDA and the national organic food labels, while the European organic label scored lower. Finally, response to food labels was found to differ between aware and unaware respondents.     

The response of U.S. natural gas futures and spot prices to storage change surprises: Fundamental information and the effect of escalating physical gas production

We study the behavior of U.S. natural gas futures and spot prices on and around the weekly announcements by the U.S. Energy Information Administration of the amount of natural gas in storage. We identify an inverse empirical relation between changes in futures prices and surprises in the change in natural gas in storage and that this relation is not driven by the absolute size of the surprise. The evidence also indicates prices react first in the futures market for natural gas with that information then flowing to the spot market. Post 2005, corresponding to a period of significant increases in the production of natural gas in the United States, the response of prices to storage surprises was larger in absolute value. No evidence is found of economically meaningful reactions to the surprise other than on the date the storage news is released. The results demonstrate the importance of fundamental information in the formation of natural gas prices.     

The Organizational Innovation System: A systemic framework for radical innovation at the organizational level

Most research on innovation management at the organizational level has typically been focused on one specific innovation project phase or innovation management concept. This has resulted in many valuable insights, though scattered in different (innovation) research fields and studies. With the development of the Organizational Innovation System (OIS), we bring together important insights from the Innovation Systems, Open Innovation and other related fields into a guiding concept useful for both innovation managers developing (radical) innovations and innovation scholars. In this paper, we define the OIS and its key structural components, and discuss the identified functions and categories of potential imperfections. With the OIS, we provide a holistic, hands-on concept currently lacking in the open innovation approach. From the conceptualization, a framework for analysis is put forward which provides structure to the study of ongoing and finished innovation processes. Additionally, the development of the OIS is a first step in the development of a currently underdeveloped micro-level within the innovation systems perspective. The insights in OISs and the future insights derived from analytical efforts, will not only be beneficial for the performance of innovating organizations and organizational innovation systems but also for the performance of the higher, interconnected system levels.