Information Transmission between Mature and Emerging Equity Markets During Normal and Crisis Periods: An Empirical Examination

In this paper, we examine the price discovery and volatility spillovers between eight mature market economies (MMEs) and eight emerging market economies (EMEs) from January 2003 to July 2014, covering three sub-periods—prior to the 2007–09 global financial crisis (GFC), during the crisis, and post-crisis. The results of price discovery indicate that MMEs lead EMEs in the pre-crisis and post-crisis periods. All MMEs are cointegrated with China in the pre-crisis period but not in the post-crisis period. Dynamic cointegration results reconfirm our findings from Johansen’s co-integration test. The asymmetric dynamic conditional correlation (ADCC-GARCH) coefficients suggest a regional pattern among MMEs and EMEs, except in the case of European MMEs with South Africa. Employing BEKK-GARCH model, we find that volatility spillovers of MMEs with China and of Italy with EMEs weakened in the post-crisis period as compared to the pre-crisis period implying that the GFC damaged the information transmission process, particularly for China and Italy. While China is a large economy with strong trade linkages with the rest of the world, Italy is one of the larger European economies which was in relatively greater distress during the EDC. The findings have implications for policy makers and investors.

     

基于航空运输的应急物资配送网络优化研究

近年来突发事件的频发给我国带来了重大的生命财产损失,应急物资配送网络的合理构建是提高我国突发事件应急处置能力的重要途径之一.提出一个抗风险能力强、反应速度快、成本节约的基于航空系统的应急物资配送网络目标规划模型,优化应急物资配送中心布局以及应急配送网络的组织形式,并选取全国100个通用机场为例进行实证分析.研究结果表明,最佳的应急物资航空配送网络是以长春、乌鲁木齐、济南、成都、南昌为配送点的中心辐射式网络,且该网络布局形式的投入成本随应急反应时间的缩小而大幅上升.     

Association between provider specialty and healthcare costs and glycemic control for patients with diabetes

Aims: To analyze the association between provider, healthcare costs, and glycemic control for patients with diabetes mellitus (DM).

Materials and methods: This cross-sectional study identified adults with type 1 or 2?DM (T1D, T2D) in the Optum database. The main independent variable was provider (endocrinologist or primary care). Regression analysis compared total medical and pharmacy costs, adjusting for health status and other patient differences, by provider.

Results: For all patients, HbA1C improvement was greater, and medical costs significantly lower with an endocrinologist rather than a primary care provider. The largest HbA1C improvement (4%) occurred for insulin-dependent patients seen by endocrinologists. Significant medical savings with endocrinologist management occurred within the Medicare Advantage population in every sub-group of patients, with 14% lower costs ($4,767) for patients with T1D, 11% lower costs ($3,160) for patients with macro- and microvascular complications, and 10% lower costs ($2,237) for insulin-dependent patients. Within the commercial insurance population, medical costs were reduced by ≥9% in every sub-group of patients, with a 20% reduction ($8,450) for patients with micro- and macrovascular complications. Overall total costs (medical and pharmacy) were 8% ($1,541) higher for patients receiving endocrinologist rather than primary care, although endocrinologist care resulted in a 9% reduction (–$3,710) in costs for Medicare Advantage patients with T1D. Total medical costs (excluding pharmacy costs) may be a more accurate indicator of costs associated with patients in various stages of DM.

Limitations: There was insufficient data to develop risk-adjustment payments for pharmacy costs based on disease severity. The cross-sectional design identifies associations and not cause–effect relationships.

Conclusion: DM management by an endocrinologist was associated with greater HbA1C improvement and significantly lower medical costs. Total costs were higher with an endocrinologist, but for patients with T1D lower costs were seen, ranging from 2–9% regardless of insurance type.     

全球股市低迷 亚洲首当其冲

一年前,当信贷危机在美国和欧洲刚刚崭露头角时,许多投资者都将亚洲股票视为了天堂。时至今日,全球股市经历了6个多月的下跌,而亚洲市场的跌幅位居前列。     

An Investigation of Market Orientation (MO) and Tourism Small and Medium-Sized Enterprises’ (SMEs) Performance in Developing Countries: A Review of the Literature

This paper aims to build a structured literature review of the field of market orientation and its impact on tourism small and medium-sized enterprises (SMEs) performance in developing countries. This literature review will present a comprehensive survey of market orientation (MO) published articles to facilitate good understanding of MO. It serves as an archive and aims to help the scholars and practitioners to explore, analyse, and develop a clear understanding about the different research points and methodologies implemented in previous studies related to MO and its impact on tourism SMEs’ performance. The paper systematically reviews and categorizes the published literature implementing a three-stage methodology, and thereafter analyzes and reviews this literature methodologically. The review covered many areas and identified some factors that drive/hinder market-oriented activities within tourism SMEs. Furthermore, suggestions have been made to understand more thoroughly how market orientation influences tourism SMEs performance in developing economies. A research gap in the area of market orientation and tourism SMEs performance in developing countries was identified. The study provides great benefits for owner-managers, government policy makers, scholars, and educators by clarifying the concept of market orientation and its relationship with performance in the context of tourism SMEs.     

Why do firms delete brands? Insights from a qualitative study

Large consumer goods firms manage and market an assortment of brands and consistently deal with strategic challenges related to brand portfolio management, such as creating or acquiring brands, growing brand equity, managing brands in the portfolio and deleting brands. There is substantial research on several areas of brand portfolio management except in the area of brand deletion. This situation exists despite the fact that deleting weak brands has important implications for a firm and its brand portfolio. Therefore, it is critical to understand why firms delete brands from their portfolios. This research applies a qualitative approach using semi-structured interviews and thematic analysis in the context of firms that adopt a ‘house of brands’ brand architecture and presents findings guided by the strategic decision-making literature.     

Accident risk analysis based on motorway exposure: an application of benchmarking technique for human safety

Abstract

Accident risk analysis for human safety and infrastructural improvement are key requirements of the engineering sector. The purpose of this paper is to identify and prioritize problematic segments of roads based upon the risk evaluation concept and to focus on the severity of accidents regarding human life loss and easy manoeuvring. This study includes the concept of considering road segments as decision-making units for application of data envelopment analysis (DEA) technique which has no compulsion of the distribution function and critical assumptions, unlike the multiple regression models. According to the proposed methodology, a section of Motorway (M-2) Lahore-Islamabad has been analyzed. Out of 200 segments under consideration, 99 segments were selected with at least one accident and one injury or fatality. Furthermore, for risk calculation and ranking of road segments, the DEA technique along with the cross-risk matrix method was applied. This optimization technique could not only be helpful in ranking but also technical decision-making and prioritizations for safety improvement, policymaking and budget allocation.