A Conditional Role-Involved Purpose-Based Access Control Model

This paper presents a conditional role-involved purpose-based access control (CPAC) model, where users dynamically activate conditional roles in accordance with the context attributes. Based on conditional role, access permissions are assigned that represent what can be accessed for what purpose to roles under certain conditions. On the other hand, conditional purpose is applied along with allowed purpose and prohibited purpose in the model. It allows users using some data for certain purpose with conditions (for instance, Tony agrees that his income information can be used for marketing purposes by removing his name). The structure of a CPAC model is defined and investigated. Access purpose is verified in a dynamic behavior, based on user attributes, context attributes, and authorization policies. Intended purposes are dynamically associated with the requested data object during the access decision. An algorithm is developed to achieve the compliance computation between access purposes and intended purposes and is illustrated with role-based access control (RBAC). Access purpose authorization and authentication in the model are studied with the hierarchical purpose structure. The model separates authorization of access purpose from access decision that improves the flexibility of private data control.     

城市创新文化建设的国际比较分析

以东京、巴塞罗那和曼彻斯特三个典型的创新型城市为对象,从环境条件(可视层)、制度行为(制度层)和价值理念(精神层)三个层面对其城市创新文化建设进行了比较分析。得出对我国创新型城市创新文化建设的启示:从传统文化中汲取养分,倡导创新观念、营造创新氛围;规划文化发展,整合创新资源,培养、引进各类优秀人才;完善创新机制,激发创新活力。     

R-estimation of the parameters of a multiple regression model with measurement errors

We consider the theory of R-estimation of the regression parameters of a multiple regression models with measurement errors. Using the standard linear rank statistics, R-estimators are defined and their asymptotic properties are studied as robust alternatives to the least squares estimator. This paper fills the gap of the rank theory for the estimation of regression parameters with measurement error models. Some simulation results are presented to show the effectiveness of the R-estimators.     

Analysis of rural activity spaces and transport disadvantage using a multi-method approach

Current knowledge about the relationship between transport disadvantage and activity space size is limited to urban areas, and as a result, very little is known about this link in a rural context. In addition, although research has identified transport disadvantaged groups based on their size of activity space, these studies have, however, not empirically explained such differences and the result is often a poor identification of the problems facing disadvantaged groups. Research has shown that transport disadvantage varies over time. The static nature of analysis using the activity space concept in previous research studies has lacked the ability to identify transport disadvantage in time. Activity space is a dynamic concept; and therefore possesses a great potential in capturing temporal variations in behaviour and access opportunities. This research derives measures of the size and fullness of activity spaces for 157 individuals for weekdays, weekends, and for a week using weekly activity-travel diary data from three case study areas located in rural Northern Ireland. Four focus groups were also conducted in order to triangulate quantitative findings and to explain the differences between different socio-spatial groups. The findings of this research show that despite having a smaller sized activity space, individuals were not disadvantaged because they were able to access their required activities locally. Car-ownership was found to be an important life line in rural areas. Temporal disaggregation of the data reveals that this is true only on weekends due to a lack of public transport services. In addition, despite activity spaces being at a similar size, the fullness of activity spaces of low-income individuals was found to be significantly lower compared to their high-income counterparts. Focus group data shows that financial constraint, poor connections both between public transport services and between transport routes and opportunities forced individuals to participate in activities located along the main transport corridors.     

Shadow Banking Credit Intermediation： Determinants of Default Risks in Securitization and Collateralization

The growth in shadow banking system over the past few years is acknowledged as the key risk to Malaysia＇s financial stability. This is because that it is associated with growth in the household debts extended by the shadow banks. In line with initiatives by the Bank Negara Malaysia （the Central Bank of Malaysia） to enhance surveillance on the activities of the shadow banks in Malaysia, this study attempts to examine the determinants of default risks of shadow banks restricting to focus on their two main activities： securitization and collateralization. The results provide empirical evidence that future methodology to examine the systemic risks in the shadow banking system may need to account for additional explanatory variables that measure collateralized assets that are being intermediated.     

The Effect of Culture and Religiosity on Business Ethics: A Cross-cultural Comparison

This article examined the effect of culture and religiosity on perceptions of business ethics among students in a tertiary institution in Malaysia. A structured questionnaire was developed with scenarios on various aspects of business ethics, and self-administered to the students in the business studies program. The results from 767 respondents showed that there were significant differences among the Malays, Chinese, and Indian students on seven scenarios namely selling hazardous products, misleading instructions, selling defective products, padding expense account, taking sick to take a day off, keeping quiet on defective products, and respond to supplier’s take good care of clients attitude. There was also an association between culture and religiosity. The MANOVA results also showed that culture and religiosity have an effect on perceptions of business ethics.     

The impact of microfinance on poverty and income inequality in developing countries

Economic growth in developing countries provides an opportunity to accelerate progress towards the UN Sustainable Development Goals (SDGs). However, in reality, the number of people living in extreme poverty remains unacceptably high. Utilising the experiences of 34 developing countries for the period 2009 to 2016, the role of microfinance on poverty in these countries is examined. The results imply that the degree to which the existing forms of microfinance effectively reduce extreme poverty is less workable in developing countries, particularly when the hardcore poor are likely being deprived of receiving access to microfinance. It is suggested that governments may need to revise the structure and strategy of microfinance to be more hardcore poor oriented. The hardcore poor have needs beyond pure monetary assistance. More hand‐holding types of assistance are needed as most are also poor in respect of literacy, assets, and skills.     

Consumer well‐being and social responsibility of subsistence entrepreneurs in subsistence marketplace

Business malpractices, such as the sale of overpriced, underweight and adulterated foodstuffs and essential commodities, can pose serious threats to subsistence consumers' wellbeing, given they are more vulnerable than their affluent counterparts. Drawing on 40 interviews with subsistence entrepreneurs in Bangladesh and Sri Lanka, our findings provide insights into the interplay between religiosity and social responsibility of entrepreneurs. We further explore how socio‐economic conditions and local embeddedness—two important characteristics of individuals in subsistence marketplaces—moderate the relationship between religiosity and social responsibility of entrepreneurs, providing implications for consumer welfare at the macro‐level. Our research makes a distinctive contribution to three streams of literature relating to social responsibility, subsistence marketplaces, and consumer affairs, with specific policy implications.     

Impact of patient portal behavioral engagement on subsistence consumers' wellbeing

Subsistence consumers, representing almost half the global population, live on low incomes, possess low levels of literacy, and generally experience poor health. Technology is a tool used to facilitate stronger connections between consumers and support services, including for subsistence consumers. Given the unique characterization of subsistence marketplaces, research needs to examine potential associations between subsistence consumers' individual resource integration and wellbeing via their behavioral engagement with technologies. Research is also warranted that investigates the factors that can moderate this association. A 45-day customized patient portal app was delivered via 26 healthcare service providers, resulting in the surveying of 336 subsistence consumers who used the portal. The results indicate positive associations between subsistence consumers' individual resource integration, patient portal behavioral engagement, and wellbeing. They also indicate that these associations are strengthened by service provider's resource support and subjective norms, and weakened by medical mistrust. Theoretical and managerial implications from this study's findings are discussed.     

The audit expectation gap： A review of the contributing factors

The audit expectation gap is critical to the auditing profession because the greater the unfulfilled expectations from the public, the lower is the credibility, earning potential and prestige associated with the work of auditors. The aim of this paper is to uncover the causes of an audit expectation gap. It is revealed that the existence of an audit expectation gap is due to complicated nature of an audit function; conflicting role of auditors; retrospective evaluation of auditors＇ performance; time lag in responding to changing expectation; and self-regulation process of the auditing profession.