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The purpose of this paper is to explore the scope of robust dispersion control charts in a distribution-free environment, which is a specific case of non-normal control charts. These control charts are skewness-based structures designed to monitor skewed-type processes whilst equally performing under symmetric processes. Moreover, the choice of a suitable control chart for a particular non-normal situation is also suggested.

The probability control limits approach is considered as an alternative way to determine the skewness-based structure of dispersion control charts. The proposals of five robust and two conventional Shewhart-type dispersion control charts are suggested as efficient competitors of skewness correction (SC) dispersion control charts. The evaluation of robust proposals and competing dispersion control charts is done through false alarm rate (FAR) and probability to signal (PTS) measures.

The proposed dispersion control charts are found robust and efficient alternatives of SC dispersion control charts in both normal and non-normal distributions. The FARs and PTS properties of proposed control charts are impressive in all studied cases, and a real-data example also verifies the dominance of proposed control charts.

Conventional dispersion control charts quickly lose their efficiency as underlying process distribution deviates from normality; however, robust control charts emerge as most suitable candidates in such situations. This paper proposes the idea of robust dispersion control charts under a distribution-free structure for the skewed-type process, which is not yet explored.

This paper aims to explore ethics in Islamic economics by establishing the micro-foundations of Islamic economics. This is done by conceptualizing the behavioural assumptions of the individual in an Islamic framework. It also argues that ethical positions that attached endogenously in individual behaviour would have implications in the macro-socio realm influencing society, institution and organization in an Islamic economic system.

The study is qualitative-based research. It explores the literature on ethics in Islamic economics to understand and analyse the concept of individual behaviour in the Islamic perspective that will be the micro-foundations of Islamic economic analysis.

It is found that the ethical commitment of individuals (as envisaged in the micro-foundations of Islamic economics) would bring socio-macro implications in the practical realm. The micro-foundations of Islamic economics would function as the basis of the economic explanation of the aggregate relationship of individual, state and society. It also serves as the basis in explaining socio-macro dynamics influencing individuals, society, as well as organizations and institutions.

The paper limits its analysis of developing the concept of ethical endogeneity in Islamic man behaviour to be the micro-foundations of Islamic economics and its macro-implications.

This study attempts to show that ethics should not only be inseparable in an economic framework but also an endogenous dimension in individual behaviour. The micro-foundations of Islamic economics are developed based on Islamic values on the characteristics and behaviour of an individual that would not only describe the true nature of man but also support his well-being.

The purpose of this paper is to develop an Islamic religiosity measurement which can be applied in many various sectors and fields.

The religiosity measurement developed by the authors had undergone systematic qualitative and quantitative approaches taking into consideration the expert opinion survey in ensuring the measurement content validity and reliability.

The study found that Islamic religiosity measurement is multi-dimensional. The dimensions found were beliefs and commitment or practice.

The research limitation of the study is that the research is in its exploratory stages and needs to be replicated and to be tested in different contextual settings.

The instrument was developed through a rigorous systematic database search, qualitative and quantitative scale development stages which can be used as the basis in measuring Islamic religiosity.

This paper aims to study the problems faced by microfinance institutions (MFIs) and relates it with Al-Tawhid to see the solutions.

An exploratory method was used to examine various literature that discuss MFIs, the challenge issues growing in tandem with the growth of the microfinance sector and the economic order of MFIs and tries to link it to Al-Tawhid.

The absence of Al-Tawhid concept in the practice of conventional MFIs caused the practices are not acceptable to Muslim micro entrepreneurs. Hence, the use of Al-Tawhid principles of contract suggested practices that are fair and free from elements of riba and gharar. It relates to the economics order by looking into the aims of providing finance up to reaching the consensus process or shuratic. Cash waqf is suggested as a source of fund for Islamic MFI for sustainability.

The findings need to be supported with empirical study to come up with suitable models.

Alternative sustainable source of funds for the Islamic MFI is suggested.

Activating the cash waqf will involve the society in large to contribute to the economic development. The beneficiaries, such as the poor and needy, will be able to find a source of living and be actively involved in generating income activities.

This paper highlights the cause of problems faced by conventional microfinance and relats the Al-Tawhid to overcome those problem conceptually.