Analysing enterprise architecture maturity models: a learning perspective

In order to aid organisations in the adoption of enterprise architecture (EA) best practices, maturity models have been proposed in the literature. These models offer organisational roadmaps and assessment frameworks for increasing EA maturity. However, key questions concerning the implied meaning of the term maturity in the context of these models have been left unexplored by previous research. This research, aided by the field of organisational learning, offers new insights into the implied assumptions of current EA maturity models and offers initial concepts and constructs to guide the conceptualisation, construction and refinement of enterprise maturity models.     

CLOSED FORM PRICING FORMULAS FOR DISCRETELY SAMPLED GENERALIZED VARIANCE SWAPS

Most of the existing pricing models of variance derivative products assume continuous sampling of the realized variance processes, though actual contractual specifications compute the realized variance based on sampling at discrete times. We present a general analytic approach for pricing discretely sampled generalized variance swaps under the stochastic volatility models with simultaneous jumps in the asset price and variance processes. The resulting pricing formula of the gamma swap is in closed form while those of the corridor variance swaps and conditional variance swaps take the form of one‐dimensional Fourier integrals. We also verify through analytic calculations the convergence of the asymptotic limit of the pricing formulas of the discretely sampled generalized variance swaps under vanishing sampling interval to the analytic pricing formulas of the continuously sampled counterparts. The proposed methodology can be applied to any affine model and other higher moments swaps as well. We examine the exposure to convexity (volatility of variance) and skew (correlation between the equity returns and variance process) of these discretely sampled generalized variance swaps. We explore the impact on the fair strike prices of these exotic variance swaps with respect to different sets of parameter values, like varying sampling frequencies, jump intensity, and width of the monitoring corridor.     

Collaborative commerce in tourism: implications for research and industry

Technology advances enable people to trade and sell their own travel products, which in turn create numerous transformation changes into the tourism industry structure, the nature of tourism products and experiences, the competitiveness of traditional and new tourism players and the process creating (social) value in tourism. This paper investigates the application and implications of collaborative commerce in tourism and provides suggestions for future research.     

高职营养配餐课程网络教学平台的构建研究——以浙江商业职业技术学院旅游烹饪学院为例

随着信息技术的发展,网络教学作为一种新型的辅助教学手段是当前教学改革的研究热点,也是教育信息化、校园数字化建设的必然趋势。文章在分析营养配餐类课程开设背景的基础上,介绍了营养配餐网络教学平台的构建理念、构成及实践应用。实践证明,网络教学平台辅助课堂教学能更有效地提高教学质量。     

Identifying terms of trade shocks in a developing country using a sign restrictions approach

Using annual data for Botswana from 1960 to 2012, we examine the responses of macroeconomic variables to four generalized positive terms of trade shocks – global demand, globalizing, sector-specific and global supply. A sign-restricted structural vector autoregression model with a penalty function is estimated to identify the four possible shocks. While positive global demand and globalization shocks are both expansionary, they have opposite effects on inflation. A positive commodity market specific shock dampens real GDP growth and is inflationary, suggesting a possible Dutch disease response. A negative global supply shock suppresses both output growth and inflation. All but the last shock leads to a significant declining interest rate. Monetary policy contraction is recommended for the first shock and expansion for the others.     

PBL教学法与案例教学法在高校商科教学中的结合应用

PBL教学法和案例教学法是商科教学中较为常见的方法,本文分析了两种方法的应用以及各自存在的局限性。文章以商科市场营销学为例,为解决各自存在的问题,将两种方法在实战中相结合,以实现课堂效果的优化,满足现代社会对商科专业人才的要求。     

英语寝室:大学英语教学的新模式

多年来,传统的语言教学课堂令英语教与学缺乏重要的衔接环节---语言的实践。"英语寝室"这种新型的教学模式为大学英语教学提供了充分的交流与应用的文化平台,更对当今学生的英语听说能力的培养起着不可忽视的重要作用。本文将对"英语寝室"作为语言实践平台的作用加以分析,控制影响因素,旨在探讨"英语寝室"作为语言教学补充的实践教学模式。     

论任务型教学法在高职中外合作办学大学英语教学中的运用

高等职业技术学院中外合作办学的学生入学分数低、基础差、学习动力不足,学习英语的态度、方法等都存在一些问题.任务型教学法强调学习者通过使用目的语进行交互活动,进而掌握语言交流的实际能力.“任务型教学”的运用和实践将对外语教学模式的转变、学生语言运用能力的培养以及学习者“互动式”学习方式的形成起到积极而有益的促进作用.     

Combining multiple probability predictions using a simple logit model

This paper begins by presenting a simple model of the way in which experts estimate probabilities. The model is then used to construct a likelihood-based aggregation formula for combining multiple probability forecasts. The resulting aggregator has a simple analytical form that depends on a single, easily-interpretable parameter. This makes it computationally simple, attractive for further development, and robust against overfitting. Based on a large-scale dataset in which over 1300 experts tried to predict 69 geopolitical events, our aggregator is found to be superior to several widely-used aggregation algorithms.     

Can Arabic Proverbs Enhance Arabic-Speaking Students’ Comprehension of Financial Concepts?: An Empirical Study in Randomly Selected Business Schools in Dubai

In this study, we investigated the use of Arabic proverbs and quotes for teaching finance courses to Arabic-speaking students who are nonnative speakers of English. The study found that the use of Arabic proverbs and quotes greatly enhances the students’ comprehension of the finance topics covered. Similarly, the study revealed that the use of Arabic proverbs and quotes for Arabic-speaking students in teaching finance courses creates rapport between the student and instructor, thus enhancing learning. Finally, the study confirmed that the use of Arabic proverbs and quotes for Arabic-speaking students in teaching finance courses does not lead to confusion or complicate matters, but enhances comprehension and bolsters retention.