The Internet of Things as an accelerator of advancement of broadband networks: A case of Thailand

The advanced development of broadband access is an inevitable step toward supportive daily lives and sustainable economic growth. However, the decisive outcome of the development relies heavily on the demand side. Consumer choice among advanced Internet broadband technologies will determine the achievement of the development. This study aims to illustrate that consumer decisions on choices of advanced Internet access are influenced by the emergence of the Internet of Things (IoT) applications. A bivariate probit model is applied to examine the effects of IoT, consumer's individual characteristics, and their current use of networks on their decision pertaining to the choice of advanced Internet access. Using Thailand as a case study, the result indicates that the emergence of IoT applications accelerates the adoption of both advanced mobile broadband (5G) and advanced fixed broadband (FTTH). This finding may help policy makers to optimize the future direction of the Internet infrastructure development in Thailand, and also countries in a similar stage.     

科技金融对制造业结构优化的双重效应研究——基于省级制造业面板数据的GMM估计

科技金融为我国产业升级带来新的发展机遇，制造业作为经济发展的核心，其结构优化升级是否受科技金融的影响值得探索。采用2010—2016年我国省级制造业细分行业数据，从合理化、高级化角度考察科技金融对制造业结构的直接效应和间接效应。结果发现，科技金融对制造业结构合理化和高级化具有直接促进作用，同时其直接影响具有地区异质性。从合理化角度，科技金融对沿海地区制造业结构合理化的影响程度低于内陆地区；从高级化角度，科技金融能够显著促进沿海地区制造业结构高级化，对内陆地区的影响则不显著。另外，通过分析科技金融对制造业结构优化的间接影响发现，技术创新和要素市场发育在科技金融对制造业结构优化的影响过程中发挥积极中介作用。     

Determinants of time varying co-movements among international stock markets during crisis and non-crisis periods

In this paper, we use the DCC MIDAS approach to assess the validity of the wake-up call hypothesis for developed and emerging markets during the global financial crisis (GFC). We use this approach to decompose the total correlations into short- (daily) and long-run (quarterly) correlations for the period from 1999 to 2011. We then examine the transmission mechanisms by regressing the quarterly economic, financial, and behavioral variables on the quarterly DCC–MIDAS correlations. We find that country specific factors are crisis contingent transmission mechanisms for the co-movements of emerging country pairs and mixed pairs of advanced and emerging countries during the global financial crisis. However, we do not observe wake-up calls in the transmission of the crisis among advanced country pairs. The classification of the transmission mechanisms for crisis and non-crisis periods with the different country pairs has important implications for crisis management as well as for portfolio investment strategies. Thus, our findings contribute to the discussion on the role and effectiveness of the international financial architecture.     

中国房地产行业盈余管理模型的构建及实证分析

本文研究中国上市房地产企业的盈余管理行为。本文发现，传统应计制下的盈余管理模型无法较好地拟合中国房地产行业盈余管理的特征。在关注房地产行业经营和财务处理方面特殊之处的基础上，通过详细分析预售制度和会计处理的特点，建立了以预收账款作为被解释变量的预收模型。运用该模型对房地产行业的盈余管理行为进行了检验．其检验效果和拟合优度要优于改进的修正琼斯模型。经过实证检验，认为上市房地产企业利用预收账款，存在微弱的正向盈余操纵。     

晚期乳腺癌患者的临床治疗及其护理效果

目的探讨晚期乳腺癌患者的临床治疗及其护理效果。方法选取我院近年收治的晚期乳腺癌患者共52例,采用药物治疗、手术治疗、内分泌治疗,并采取针对性护理干预,比较患者的术后并发症情况。结果患者并发症发生率达到34.6%,其中以皮下积液为主,另存在术侧上肢水肿以及皮瓣坏死2类并发症。所有患者术后经过护理干预后均痊愈而顺利出院。结论对晚期乳腺癌患者的临床治疗可多元化,临床护理也应从多角度展开,注重并发症的预防及护理干预,提升治疗的有效性。     

Cost-effectiveness of continuous subcutaneous apomorphine in the treatment of Parkinson’s disease in the UK and Germany

Abstract

Background:

Parkinson’s disease (PD) is the second most common neurodegenerative disease, affecting ～5.2 million people worldwide. Continuous subcutaneous apomorphine (CSAI) represents an alternative treatment option for advanced PD with motor fluctuation. The purpose of this analysis was to estimate the cost-effectiveness of CSAI compared with Levodopa/carbidopa intestinal gel (LCIG), Deep-Brain-Stimulation (DBS) and Standard-of-care (SOC).

Methods:

A multi-country Markov-Model to simulate the long-term consequences, disease progression (Hoehn & Yahr stages 3–5, percentage of waking-time in the OFF-state), complications, and adverse events was developed. Monte-Carlo simulation accounted for uncertainty. Probabilities were derived from RCT and open-label studies. Costs were estimated from the UK and German healthcare provider’s perspective. QALYs, life-years (LYs), and costs were projected over a life-time horizon.

Results:

UK lifetime costs associated with CSAI amounts to £78,251.49 and generates 2.85 QALYs and 6.28 LYs (€104,500.08, 2.92 QALYs and 6.49 LYs for Germany). Costs associated with LCIG are £130,011.34, achieves 3.06 QALYs and 6.93 LYs (€175,004.43, 3.18 QALYs and 7.18 LYs for Germany). The incremental-cost per QALY gained (ICER) was £244,684.69 (€272,914.58). Costs for DBS are £87,730.22, associated with 2.75 QALYs and 6.38 LYs (€105,737.08, 2.85 QALYs and 6.61 LYs for Germany). CSAI dominates DBS. SOC associated UK costs are £76,793.49; 2.62 QALYs and 5.76 LYs were reached (€90,011.91, 2.73 QALYs and 6 LYs for Germany).

Conclusions:

From a health economic perspective, CSAI is a cost-effective therapy and could be seen as an alternative treatment to LCIG or DBS for patients with advanced PD.     

浅谈《高等代数》中的问题探究

任何一门学科的教学都有其具体的教学目标,而现代大学教育更多地强调学生的综合素质的发展。如何将大学教学的基本原则贯穿于高等代数的教学中,使学生在获取专业理论知识的同时,又得到多种能力的提高,实现真正意义上的素质教育目标,在《高等代数》课程的教学中作了一些尝试。     

先进制造模式下创新在提高生产效率中的作用分析——以某船厂为例

中国从世界制造大国发展成为世界制造强国必须实行先进制造模式。而在造船领域,总装化造船则是一种先进制造模式。本文以新增长理论为基础,从新制度经济学的角度论述了专业化分工协作的造船体制等制度创新因素对提高造船效率的影响;建立某船厂造船量增长模型,并分析了造船模式创新、技术创新、人力资本创新等因素在造船量增长中的贡献率。测算表明,作为一种先进制造模式,造船模式的创新对生产效率的提高起到了非常重要的作用。     

Multivariate Cox Hidden Markov models with an application to operational risk

ABSTRACT

Modeling multivariate time-series aggregate losses is an important actuarial topic that is very challenging due to the fact that losses can be serially dependent with heterogeneous dependence structures across loss types and business lines. In this paper, we investigate a flexible class of multivariate Cox Hidden Markov Models for the joint arrival process of loss events. Some of the nice properties possessed by this class of models, such as closed-form expressions, thinning properties and model versatility are discussed in details. We provide the expectation-maximization (EM) algorithm for efficient model calibration. Applying the proposed model to an operational risk dataset, we demonstrate that the model offers sufficient flexibility to capture most characteristics of the observed loss frequencies. By modeling the log-transformed loss severities through mixture of Erlang distributions, we can model the aggregate losses. Finally, out-of-sample testing shows that the proposed model is adequate to predict short-term future operational risk losses.     

The search for the best deal: How hotel cancellation policies affect the search and booking decisions of deal-seeking customers

This study examined cancellation policies and their role in shaping travelers’ deal-seeking behavior, exploring the impact of cancellation fees and deadlines on three, mutually exclusive, customers’ hotel booking behavior categories: “Book”, “Book and Search”, and “Search”. 291 subjects, who participated in a week long online “booking game”, attempted to book a room in a virtual hotel and get the best deal. The results were tested using small sample t-test for comparing proportions between two independent populations, non-parametric multiple pairwise comparisons, and multinomial logit regression models. The findings indicate that the cancellation deadline affected participants’ behavior while the size of the cancellation fee had no statistically significant impact. In addition, there was no significant difference between lenient cancellation deadline and no cancellation policy.