The global economic costs of the need to treat polluted water

We estimate the global costs and other implications of the need to treat wastewater before it can be re-used. We extend the World Trade Model by creating water treatment sectors and provide alternative sources of water for satisfying users’ quantity and quality requirements. The database distinguishes qualities and quantities of water endowments, sectoral water requirements, and wastewater discharges. We estimate that global water treatment costs could be reduced by several trillion dollars if water endowments were maintained at higher quality than currently is the case. Under scenarios where water quality degrades further, the treatment costs more than double even without taking account of likely increases in quality requirements. This modeling framework provides a starting point not only for more detailed empirical investigations of water management strategies, but also for examining prospects and associated costs for recovering other resources, such as metals, which can be reused multiple times.     

Predictors of the adoption of work–care arrangements: a study of South African firms

This study examines predictors of work–care arrangements in South African organisations. It investigates the adoption of 23 work–care arrangements in organisations listed on the Johannesburg Stock Exchange. Organisational size, female presence in the organisation and in trade unions, female leadership and trade union density are tested as predictors of the adoption of these arrangements. In addition, foreign ownership, a previously untested variable predicting the adoption of work–care arrangements, is included in this study. The findings show that the level of adoption of work–care arrangements in South African organisations is low. Organisational size and female presence in senior managerial positions are found to be associated with the greater adoption of work–care arrangements. The study adds to existing work–family research by examining work–care integration in a non-Western context. Furthermore, the study is innovative in the addition of foreign ownership as an independent variable and the inclusion of a broader range of work–care arrangements in the study. The study is relevant for other developing nations and extends the existing research on employer involvement in work and care in developed nations.     

Organizational work–family support as universal remedy? A cross-cultural comparison of China,India and the USA

In both industrialized and emerging countries, organizations increasingly seek to support employees’ efforts to maintain a healthy work–family balance. Research has identified two types of organizational support in this context: formal work–family programs and informal work–family cultures. This study examines the relative effects of work–family programs versus work–family culture on employees’ job satisfaction and performance in various cultural environments. Drawing on the individualism–collectivism cultural dimension introduced by Hofstede, it is argued that employees’ cultural background may affect family models, which in turn determine employees’ need for formal organizational work–family support, but are not related to employees’ need for informal support. In line with this notion, the results from comparisons of an industrialized country (the USA) with two emerging countries (China and India) show that work–family culture has positive effects in all three contexts. However, formal work–family programs positively affect job satisfaction and job performance only in India and the USA, whereas they exhibit no significant effect in the more collectivist setting of China.     

The Feller diffusion,filter rules and abnormal stock returns

We determine the conditional expected logarithmic (i.e. continuously compounded) return on a stock whose price evolves in terms of the Feller diffusion and then use it to demonstrate how one must know the exact probability density that describes a stock’s return before one can determine the correct way to calculate the abnormal returns that accrue on the stock. We show in particular that misspecification of the stochastic process which generates a stock’s price will lead to systematic biases in the abnormal returns calculated on the stock. We examine the implications this has for the proper conduct of empirical work and for the evaluation of stock and portfolio performance.     

The effects of power relationships: knowledge,practice and a new form of regulatory capture*

Abstract

In the wake of disasters, criticism tends to target regulatory failures and regulatory capture. In this status quo, the roles of regulators are black-boxed and criticism fails to explore what has been happening within and around regulatory institutions. This paper explores how relationships between regulators of hazardous industry and those who interact with them affect regulatory practice. Actor-network theory was utilised to generate findings drawn from a study of the Australian pipeline industry in order to reveal perspectives and the approaches of regulators in regulating pipeline risks. The findings indicate that pipeline regulators have a particular logic in practicing risk analysis. This paper argues that such a logic can be theorised as a new form of regulatory capture that limits the way regulators regulate risks and constrains the potential of regulatory outcomes. It is urged that a new form of logics of practice needs to be developed so as to improve the process of risk regulation in preventing catastrophic accidents.     

Ultra-high-frequency lead–lag relationship and information arrival

To our knowledge, this paper is the first study on the effect of information arrival on the lead–lag relationship amongst related spot instruments. Based on a large data-set of ultra-high-frequency transaction prices time-stamped to the millisecond of the S&P500 index and its two most liquid tracking ETFs, we find that their lead–lag relationship is affected by the rate of information arrival whose proxy is the unexpected trading volume of these instruments. Specifically, when information arrives, the leadership of the leading instrument may strengthen or weaken depending on whether the leading or lagging instrument responds to that information. An increase in the unexpected volume of the leader strengthens its leadership whereas an increase in the unexpected volume of the lagger weakens this leadership. In addition to the strength of leadership, an increase in the unexpected volume in response to information arrival may also have opposite effects on the lead–lag correlation coefficient depending on whether that volume increase belongs to the leader or the lagger. Finally, we find that sophisticated investors have a more significant effect on the lead–lag relationship than non-sophisticated ones.     

Bayesian estimation of labor demand by age: theoretical consistency and an application to an input–output model

Extended input–output models require careful estimation of disaggregated consumption by households and comparable sources of labor income by sector. The latter components most often have to be estimated. The primary focus of this paper is to produce labor demand disaggregated by workers’ age. The results are evaluated through considerations of its consistency with a static labor demand model restricted with theoretical requirements. A Bayesian approach is used for more straightforward imposition of regularity conditions. The Bayesian model confirms elastic labor demand for youth workers, which is consistent with what past studies find. Additionally, to explore the effects of changes in age structure on a regional economy, the estimated age-group-specific labor demand model is integrated into a regional input–output model. The integrated model suggests that ceteris paribus ageing population contributes to lowering aggregate economic multipliers due to the rapidly growing number of elderly workers who earn less than younger workers.     

Structural changes,competition and bank stability in Malaysia’s dual banking system

This paper assesses Malaysia’s competition landscape and its risk implications subsequent to conventional banking consolidation and Islamic banking penetration in the aftermath of the 1997/1998 Asian financial crisis. Employing a panel sample of conventional and Islamic commercial banks, it arrives at the following conclusions. First, the consolidation exercise, which has led to a significant reduction in the number of domestic commercial banks, has not stifled banking competition. Second, the paper provides empirical support for the competition-stability relationship, particularly for the conventional banking sector. Islamic banking sector risk appears to be neutral to market competition or market power, although there is limited evidence that it increases with overall market concentration. Finally, the analysis uncovers the risk-increasing effect of the Islamic banking market structure on the conventional banking sector. By contrast, conventional banking market concentration tends to reduce the credit risk of Islamic banks.     

Job demands–resources: a gender perspective on employee well-being and resilience in retail stores in China

Abstract

Organisational resilience can be promoted through human resource management (HRM) practices that enhance individual employees’ well-being and ability to cope with adversity. However, the extant literature tends to neglect the influence of gender on employee well-being and resilience. Shop floor employees in retail stores often undertake demanding roles, characterised by considerable pressure and low pay, and attendant high levels of employee turnover. Drawing on the job demands–resources model, by analysing data collected from 697 employees at foreign-invested retail stores in China, this paper found that workload and employee participation in decision-making had a similar impact on the well-being of both male and female employees. However, the impact of job security and emotional demands on employees differed by gender. This paper extends the job demands–resources model by articulating the influence of gender on employee well-being. Additionally, its empirical insights, drawn from an emerging economy context, enable a contribution to the literature on employee well-being and resilience. Relevant implications for HRM and resilience are discussed.     

Expected shortfall assessment in commodity (L)ETF portfolios with semi-nonparametric specifications

ABSTRACT

This paper studies the risk assessment of semi-nonparametric (SNP) distributions for leveraged exchange trade funds, (L)ETFs. We applied the SNP model with dynamic conditional correlations (DCC) and EGARCH innovations, and implement recent techniques to backtest Expected Shortfall (ES) to portfolios formed by bivariate combinations of major (L)ETFs on metal (Gold and Silver) and energy (Oil and Gas) commodities. Results support that multivariate SNP-DCC model outperforms the Gaussian-DCC and provides accurate risk measures for commodity (L)ETFs.