NERJIT: Using Net Requirement Data in Kanban‐Controlled Jumbled‐Flow Shops

The bold lines that have separated the application of specific production planning and control techniques to specific production systems are being blurred by continuous advances in production technologies and innovative operational procedures. Oral communication among dispatchers and production units has given way to electronic communication between production planners and these units by continuous progress in information technologies. Current production literature alludes to the idea that, collectively, these advances have paved the way for application of Just‐In‐Time (JIT) production concepts, which were originally developed for mass production systems, in intermittent production systems. But this literature does not actually consider the possibility. This article presents a modification to JIT procedures to make them more suitable for jumbled‐flow shops. This article suggests providing real‐time information about net‐requirements for each product to each work center operator for setting production priorities at each work center. Simulation experiments conducted for this study show that using Net‐Requirements in JIT (NERJIT) reduces customer wait time by 45–60% while reducing inventory slightly. The analysis of work centers’ input and output stock‐point inventories shows that using the information about net‐requirements results in production of items that are in current demand. NERJIT results in smaller input stock‐point inventory and availability of products with higher priority in the output stock‐points of work centers.     

Managerial Hostility and Attitudes Towards Unions: A Canada-US Comparison

We use a cross-country survey of attitudes toward work and unions, which includes a sample of managers in both the US and Canada, to explore whether there is greater attitudinal hostility to unions in the U.S. Our estimates indicate that American manager’s attitudes towards unions are, perhaps surprisingly, less hostile than those of Canadian managers. We explain this first finding by the differential effect of perceived union power, which is greater in Canada than the US and which is correlated negatively with union approval. We also find that US managers are less likely to use extreme methods to oppose union organizing drives, implying that the lower union rates in the US as compared to Canada are not likely the result of greater negativity towards unions themselves but rather some other factor or combination of factors. The implication is that if Canadian managers faced the same labor relations playing field as their US counterparts, they would likely find it easier to thwart union certification drives as well. Alternatively stated, Canadian-style labor relations reforms (such as card-check systems or quicker certification votes) could perhaps tip the balance in favor of unions when organizing in the US.     

Grassroots Support Organizations and Transformative Practices

ABSTRACT

This essay theorizes grassroots support organizations (GSOs) as empowerment-oriented development nongovernmental organizations (NGOs) and grassroots support as a growing field of community-based practice. It offers a conceptual definition of GSOs; specifies their organizational features, functions, and goals; and differentiates them from other public and private intermediary organizations. It also details the activities carried out by GSOs and suggests how these cohere into a model of grassroots support. The article discusses the challenging issues of financing, accountability, and scale faced by GSOs. Finally, it establishes the relevance of social work to grassroots support and GSOs as fields of study and practice.     

Pathological Gambling and Treatment Outcomes for Adults Age 50 or Older in Methadone Maintenance Treatment

This study examined the relationship of pathological gambling to negative treatment outcomes for methadone maintenance patients aged 50 or older. The study included 130 methadone maintenance patients. Pathological gambling was determined using the Lie-Bet, a screen for pathological gambling; the outcomes were remaining in treatment and negative urine screens for drug use. Twenty percent of the sample identified as pathological gamblers. Pathological gambling was unrelated to remaining in treatment or negative urine screens. Although pathological gambling had no adverse influence on these treatment outcomes, the prevalence of pathological gambling suggests that screening for it may provide insights about other concerns.     

Providing social security in a context of change: Experience and challenges in Latin America

Over the past two decades Latin America has experienced major demographic, economic and social changes. The trend towards accelerated ageing of the population in most countries, together with the financial restrictions faced by social protection systems, has brought sweeping changes in pension programmes. The new demographic and labour context presents challenges for these new programmes which, unless they make the necessary adaptations, will definitely be unable to attain their stated objective of providing universal coverage and eliminating poverty in old age. This article offers a general discussion of the processes that the region is undergoing, as well as the limitations and challenges imposed by existing welfare systems. Finally, it examines the options available to retain the objective of universal coverage and thus ensure the economic needs of the elderly population.     

Redistribution and labour supply

This paper explores the effect of personal income taxes on redistribution when labour supply reactions are taken into consideration. The results indicate that the classical non-behavioural results on redistribution are not necessarily satisfied in a more general behavioural framework. In this respect, it is shown that the relevant transition to measure redistribution is not the transition from the initial post-tax to the final post-tax income distribution, but rather from the more precise initial pre-tax to the final post-tax income distribution. In addition, the necessary and sufficient conditions to ensure redistribution in this wider setting are postulated, which helps determine the behavioural bias under alternative tax and labour supply models. This shows that the functional specification of labour supply may also affect the results.     

Hotel manager perceptions about corporate compliance in the tourism industry: an empirical regional case study in Spain

Journal of Management and Governance - Corporate cases and scandals of corruption have emerged in the hospitality industry. In Spain, the recent Criminal Code (1/2015) proposed an organisational...     

Teaching Decision Theory Proof Strategies Using a Crowdsourcing Problem

Teaching how to derive minimax decision rules can be challenging because of the lack of examples that are simple enough to be used in the classroom. Motivated by this challenge, we provide a new example that illustrates the use of standard techniques in the derivation of optimal decision rules under the Bayes and minimax approaches. We discuss how to predict the value of an unknown quantity, θ ∈ {0, 1}, given the opinions of n experts. An important example of such crowdsourcing problem occurs in modern cosmology, where θ indicates whether a given galaxy is merging or not, and Y₁, …, Y_n are the opinions from n astronomers regarding θ. We use the obtained prediction rules to discuss advantages and disadvantages of the Bayes and minimax approaches to decision theory. The material presented here is intended to be taught to first-year graduate students.     

Imagining Gender Research: Violence,Masculinity, and the Shop Floor

This paper starts by arguing that visual data enriches gender research in management and organizations. Through an analysis of drawings by factory shop‐floor workers, we show that organizational climate is interwoven with gender dynamics, that shop‐floor masculinity is not necessarily heterosexual, and that masculinity in the shop‐floor context includes oppression as an element of man's symbolic violence against man. We discuss the usefulness of this type of data in gender research in organizational analysis and explore the ways in which gender violence is expressed in organizations. Moreover, the drawings gathered at a newspaper printing site located in the North of England provide a means of showing the relationship between gender violence and the exercise of masculinities, sexuality and oppression. We conclude that the exercise of hegemonic masculinity is associated not only with sexuality but also with the oppression of subaltern enactments of masculinity.