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This paper aims to validate a broader conceptualization of ethical leadership and a matching measurement scale (BELS) using survey data from 909 public servants in leadership positions in the Netherlands.

The confirmatory factor analysis (CFA) (using AMOS) and exploratory factor analysis were carried out with repeated CFA. A social desirability scale was used to check for model fitness.

Our findings support the notion that ethical leadership is broader in conceptualization and hence reject the theories that limit the role of ethical leaders within the confines of organizations. This study confirms that attributes like sustainability, leadership learning, ethical competency, diversity and resilience are part of ethical leadership. Such characteristics could not be measured with previous scales for ethical leadership. Also, ethical leadership is not separate from associated leadership styles.

A self-assessment scale for leaders was used for this study. Although there is no indication of social desirability bias, future research can also focus on follower assessments of their leaders. This study only focuses on the public sector context only.

Our results suggest that ethical leadership contains more subvalues than in the seminal definition. This study has, therefore, corroborated a broader definition of ethical leadership.

This study indicates the need for ethical leadership to be studied and assessed using a broader conceptualization and measurement scale.

The purpose of this paper is to offer a review of the selected literature in ethical leadership synthesizing findings from 45 articles selected from journals on leadership, public administration, organizational behavior, psychology and ethics.

Four themes are addressed: the conceptualization of ethical leadership theories, the existence of popular measurement instruments for ethical leadership, findings on ethical leadership in the public sector and outcomes of ethical leadership in terms of benefits and negative consequences.

The definition by Brown et al. (2005) is the most frequently used definition, even though recent criticism states that this definition may be too narrow. Ethical leadership is usually measured by means of a survey; however, there are at least three different questionnaires in use. In the public sector, ethical leadership has been linked to both positive outcomes and negative consequences.

This paper only includes selected academic articles and does not include published books.

Based on our findings, the authors present recommendations for future research, among others into a broader conceptualization of ethical leadership and the use of mixed methods.

Human-induced changes in climate have affected the environment to the extent that any more economic development at the cost of the environment will be too costly. Thus, sustainable development options posing no additional harm to the environment are the only viable option. This study aims to examine the likely environmental impacts of infrastructural developments through the China–Pakistan Economic Corridor (CPEC).

There is a scarcity of academic debate and discussion on the environmental impact of CPEC developments in laws and policies on the environment. The qualitative approach is followed in this study and official documents and reports are used to investigate the environmental challenges posed by CPEC.

The findings show three possible environmental concerns which could increase the climate change vulnerability of Pakistan. The coal-fired power plants are the most prominent threat based on their CO₂ contributions and smog. Second, cutting more than 54,000 trees for roads infrastructure will increase CO₂ concentration along the CPEC route. Third, increasing vehicle trafficking by up to 7,000 trucks per day on Karakorum Highway alone will release 36.5 million tons of additional CO₂.

It is essential to rethink the environmental cost of CPEC. The study suggests economic and legal cooperation between Pakistan and China as a way forward to deal with climate change issues. Environmental laws should be a vital part of CPEC projects to ensure their safety, security and sustainability.

In Islamic finance (IF), the safety-first rule of investing (hifdh al mal) is held to be of utmost importance. In view of the instability in the global financial markets, the IF portfolio manager (mudharib) is committed, according to Sharia, to make use of advanced models and reliable tools. This paper seeks to address these issues.

In this paper, the limitations of the standard models used in the IF industry are reviewed. Then, a framework was set forth for a reliable modeling of the IF markets, especially in extreme events and highly volatile periods. Based on the empirical evidence, the framework offers an improved tool to ameliorate the evaluation of Islamic stock market risk exposure and to reduce the costs of Islamic risk management.

Based on the empirical evidence, the framework offers an improved tool to ameliorate the evaluation of Islamic stock market risk exposure and to reduce the costs of Islamic risk management.

In IF, the portfolio manager – mudharib – according to Sharia, should ensure the adequacy of the mathematical and statistical tools used to model and control portfolio risk. This task became more complicated because of the increase in risk, as measured via market volatility, during the financial crisis that began in the summer of 2007. Sharia condemns the portfolio manager who demonstrates negligence and may hold him accountable for losses for failing to select the proper analytical tools. As Sharia guidelines hold the safety-first principle of investing rule (hifdh al mal) to be of utmost importance, the portfolio manager should avoid speculative investments and strategies that would lead to significant losses during periods of high market volatility.