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A distinction must be drawn between a dismissal on the one hand, and on the other a repudiation of a contract of employment as a result of a breach of a fundamental term of that…
Abstract
A distinction must be drawn between a dismissal on the one hand, and on the other a repudiation of a contract of employment as a result of a breach of a fundamental term of that contract. When such a repudiation has been accepted by the innocent party then a termination of employment takes place. Such termination does not constitute dismissal (see London v. James Laidlaw & Sons Ltd (1974) IRLR 136 and Gannon v. J. C. Firth (1976) IRLR 415 EAT).
Farnoosh Naderkhani, Leila Jafari and Viliam Makis
The purpose of this paper is to propose a novel condition-based maintenance (CBM) policy with two sampling intervals for a system subject to stochastic deterioration described by…
Abstract
Purpose
The purpose of this paper is to propose a novel condition-based maintenance (CBM) policy with two sampling intervals for a system subject to stochastic deterioration described by the Cox’s proportional hazards model (PHM).
Design/methodology/approach
In this paper, the new or renewed system is monitored using a longer sampling interval. When the estimated hazard function of the system exceeds a warning limit, the observations are taken more frequently, i.e., the sampling interval changes to a shorter one. Preventive maintenance is performed when either the hazard function exceeds a maintenance threshold or the system age exceeds a pre-determined age. A more expensive corrective maintenance is performed upon system failure. The proposed model is formulated in the semi-Markov decision process (SMDP) framework.
Findings
The optimal maintenance policy is found and a computational algorithm based on policy iteration for SMDP is developed to obtain the control thresholds as well as the sampling intervals minimizing the long-run expected average cost per unit time.
Research limitations/implications
A numerical example is presented to illustrate the whole procedure. The newly proposed maintenance policy with two sampling intervals outperforms previously developed maintenance policies using PHM. The paper compares the proposed model with a single sampling interval CBM model and well-known age-based model. Formulas for the conditional reliability function and the mean residual life are also derived for the proposed model. Sensitivity analysis has been performed to study the effect of the changes in the Weibull parameters on the average cost.
Practical implications
The results show that considerable cost savings can be obtained by implementing the maintenance policy developed in this paper.
Originality/value
Unlike the previous CBM policies widely discussed in the literature which use sequential or periodic monitoring, the authors propose a new sampling strategy based on two sampling intervals. From the economic point of view, when the sampling is costly, it is advantageous to monitor the system less frequently when it is in a healthy state and more frequently when it deteriorates and enters the unhealthy state.
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J. Hyman, H. Ramsay, J. Leopold, L. Baddon and L.C. Hunter
There has been a considerable amount of interest in employee shareownership schemes in the last few years, and this has been mirrored byan increase in publications relating to the…
Abstract
There has been a considerable amount of interest in employee share ownership schemes in the last few years, and this has been mirrored by an increase in publications relating to the subject. However, the authors argue that this literature leaves much to be desired, in particular in its implicit assumption that management and employee interests will converge with share ownership. The evidence from two of their case studies indicates a divergence between management objectives and employee responses. It also suggests that trade union attitudes to share ownership may be changing as well.
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Maria Alebaki, Maria Psimouli and Stella Kladou
Wine tourism literature still falls behind other streams of research in its ability to assess phenomena associated with the implementation of digital practices to address…
Abstract
Wine tourism literature still falls behind other streams of research in its ability to assess phenomena associated with the implementation of digital practices to address strategic challenges. Moreover, studies on social media in tourism and hospitality prioritize the relationship between tourists’ behavioural aspects and technology. Relationships, experiences and timely responses on the digital environment are particularly important, taken the ‘new normal’ which COVID-19 necessitates. Within this framework, the present case study explores the role of social media (Facebook in specific) in the effort of Cretan wineries to respond to new encounters, as well as the importance, if any, of collaborative practices for developing online strategies of individual businesses. Findings help us identify (a) the role of the winescape studies in exploring the digital environment and (b) the main communication priorities of wineries as expressed through social media during the pandemic crisis.
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Mary T. Rodgers and James E. Payne
We find evidence that the runs on banks and trust companies in the Panic of 1907 were linked to the Bank of England’s contractionary monetary policy actions taken in 1906 and 1907…
Abstract
We find evidence that the runs on banks and trust companies in the Panic of 1907 were linked to the Bank of England’s contractionary monetary policy actions taken in 1906 and 1907 through the medium of copper prices. Results from our vector autoregressive models and copper stockpile data support our argument that a copper commodity price channel may have been active in transmitting the Bank’s policy to the New York markets. Archival evidence suggests that the plunge in copper prices may have partially triggered both the initiation and the failure of an attempt to corner the shares of United Copper, and in turn, the bank and trust company runs related to that transaction’s failure. We suggest that the substantial short-term uncertainties accompanying the development of the copper-intensive electrical and telecommunications industries likely played a role in the plunge in copper prices. Additionally, we find evidence that the copper price transmission mechanism was also likely active in five other countries that year. While we do not argue that copper caused the 1907 crisis, we suggest that it was an active policy transmission channel amplifying the classic effect that was already spreading through the money market channel. If the bust in copper prices partially triggered the 1907 panic, then it provides additional evidence that contractionary monetary policy may have had an unintended, adverse consequence of contributing to a bank panic and, therefore, supports other recent findings that monetary policy deliberations might benefit from considering the policy impact on asset prices.
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When the system fails, the decision to repair or replace a failed unit may depend on the estimated repair cost. Such an idea is called repair limit replacement policy. The repair…
Abstract
When the system fails, the decision to repair or replace a failed unit may depend on the estimated repair cost. Such an idea is called repair limit replacement policy. The repair limit is a limit on the amount of money which can be spent on the repair of a system. The repair limits thus provide an economic replacement policy. Examines optimal repair‐cost limits for a Weibull‐distributed time to failure and an exponentially distributed repair cost. Derives bounds for the optimal repair cost limit that minimizes the average cost per unit time for repairs and replacement. With those bounds, develops a simple algorithm to obtain the optimal repair‐cost limit. Gives numerical examples to illustrate the algorithm.
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Industry's need for external advisory assistance in the management/industrial relations area will be determined by the nature of the problems currently faced or anticipated. These…
Abstract
Industry's need for external advisory assistance in the management/industrial relations area will be determined by the nature of the problems currently faced or anticipated. These problems in turn will be influenced by the industrial sector, size of establishment, technology and the economic and legal context.
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Applies the two‐factor version of the Heckscher‐Ohlin‐Vanek (HOV)theorem. Two hypotheses are derived. The empirical analysis offerssupport for the second but not for the first…
Abstract
Applies the two‐factor version of the Heckscher‐Ohlin‐Vanek (HOV) theorem. Two hypotheses are derived. The empirical analysis offers support for the second but not for the first hypothesis when trade of each Organization for Economic Co‐operation and Development (OECD) country with the rest of the world is analysed. Examines the factor content of net trade with data on foreign trade between the OECD countries and then determines average capital‐labour ratio as the OECD average. Both the hypotheses receive empirical support. Finds that the two‐factor version of the HOV theorem performs well when applied to the environment where it is supposed to apply.
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Patricia Guerrero, David F. Arena and Kristen P. Jones
While scholarship has identified the bias that maternal women (Arena et al., 2023; Grandey et al., 2020) and racial minority employees (King et al., in press) endure, few have…
Abstract
While scholarship has identified the bias that maternal women (Arena et al., 2023; Grandey et al., 2020) and racial minority employees (King et al., in press) endure, few have taken aim at understanding how these identity characteristics might combine to concomitantly shape work experiences. Drawing from stigma theory (Goffman, 1963), the primary purpose of our chapter is to examine how the stereotypes of maternity might interact with race-based stereotypes to shape the experiences of working women. In doing so, we will be able to identify which stereotypes of maternity (i.e., incompetence or disloyalty; Grandey et al., 2020) might be exacerbated or weakened when varying race-based stereotypes are considered. After reviewing the potential for intersecting stereotypes, we then argue that mothers might experience different work and health outcomes – both pre- and postpartum – based on their race. We close by providing insight for future scholars and identify additional identity characteristics that may shape mothers' workplace experiences.
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Raymond Loveridge and Albert Mok
In neo‐classical economic theory labour is a commodity and the ultimate value of the employer's services is determined by the sales value of the product of these services: the…
Abstract
In neo‐classical economic theory labour is a commodity and the ultimate value of the employer's services is determined by the sales value of the product of these services: the cost of supply reflects both the disutility of work for the recruit and his equalisation of net advantages between jobs. For modern labour economists the assumption that entrepreneurs require identical inputs of labour and the new recruits will therefore possess similar skills (the conditions of free competition) is an unrealistic one. Hence segmental labour market theory has grown out of the need to explain differences between shared needs and commonalities within each group of consumers (employers) on the one hand and suppliers (employees) on the other. In this way it has been possible to carry on assuming the existence of perfect competition on both sides of the market within the boundaries of labour markets thus defined.