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1 – 10 of over 18000Allen Michel, Jacob Oded and Israel Shaked
The cornerstone of Modern Portfolio Theory with implications for many aspects of corporate finance is that reduced correlation among assets and reduced standard deviation are key…
Abstract
Purpose
The cornerstone of Modern Portfolio Theory with implications for many aspects of corporate finance is that reduced correlation among assets and reduced standard deviation are key elements in portfolio risk reduction. The purpose of this paper is to analyze the conditional correlation and standard deviation of a broad set of indices with the S & P 500 conditioned on market performance.
Design/methodology/approach
The authors examined volatility and correlation for a set of indices for a 19-year period based on weekly data from July 2, 1993 to June 30, 2012. These included the NASDAQ, MSCI EAFE, Russell 1000, Russell 2000, Russell 3000, Russell 1000 Growth, Russell 1000 Value, Gold, MSCI EM and Dow Jones UBS Commodity. The data for the Wilshire US REIT, Barclays Multiverse, Multiverse 1-3, Multiverse 3-5 and Multiverse 10+ became available starting July 2, 2002. For these indices the authors used weekly data from July 1, 2002 through June 30, 2012. For the iBarclays TIPS, the authors used weekly data from the time of availability, namely, for the period December 12, 2003 through June 29, 2012.
Findings
The findings demonstrate that both the conditional correlations and standard deviations vary as a function of market performance. Moreover, the authors obtain a U-shape distribution of correlations conditioned on market performance for equity indices, such as NASDAQ, as well as for the Wilshire REIT. Namely, correlations tend to be high when market returns are at low or high extremes. For more typical market performance, correlations tend to be low. A modified U-shape is found for bond indices and the Dow Jones UBS Commodity Index. Interestingly, the correlation between gold and the S & P 500 is unrelated to the return on the S & P.
Originality/value
While it has been observed that asset classes move together, this paper is the first to systematically analyze the nature of these asset class correlations.
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This note presents new archival evidence about John Maynard Keynes’ attitudes toward Jews. The relevant material is composed of two letters sent by Robert G. Wertheimer to…
Abstract
This note presents new archival evidence about John Maynard Keynes’ attitudes toward Jews. The relevant material is composed of two letters sent by Robert G. Wertheimer to Bertrand Russell and Richard F. Kahn along with their replies. Between 1963 and 1964, Wertheimer – an Austrian-born Jewish immigrant then professor of economics at Babson College – wrote to Russell and Kahn asking for their personal reminiscences concerning Keynes’ anti-Semitic utterances. In their brief but still significant responses, both Russell and Kahn firmly denied any hint of anti-Semitism in Keynes, thereby providing significant first-hand testimonies from two of his closest acquaintances.
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Connie R Wanberg, Elizabeth T Welsh and Sarah A Hezlett
Organizations have become increasingly interested in developing their human resources. One tool that has been explored in this quest is mentoring. This has led to a surge in…
Abstract
Organizations have become increasingly interested in developing their human resources. One tool that has been explored in this quest is mentoring. This has led to a surge in mentoring research and an increase in the number of formal mentoring programs implemented in organizations. This review provides a survey of the empirical work on mentoring that is organized around the major questions that have been investigated. Then a conceptual model, focused on formal mentoring relationships, is developed to help understand the mentoring process. The model draws upon research from a diverse body of literature, including interpersonal relationships, career success, training and development, and informal mentoring. Finally, a discussion of critical next steps for research in the mentoring domain is presented.
The author aims to present a model of the brand value drivers, measured by brand equity. The goal of this research is to identify the drivers, and determine how they influence…
Abstract
Purpose
The author aims to present a model of the brand value drivers, measured by brand equity. The goal of this research is to identify the drivers, and determine how they influence brand equity performance in the researched industry, in order to develop a more effective brand strategy.
Design/methodology/approach
The author studied an aggregate dataset for 739 food brands. Six predictors were controlled for (i.e. marketing investments, price, revenue, perceived quality [organic and functional] and brand ownership), while the impact of the brand equity drivers on brand value was estimated. The model was formulated and estimated using a robust OLS procedure. Several data sources have were in this study, such as market-based data from ACNielsen, as well as information and variable constructs using data from the Bureau Van Dijk Electronic Publishing AIDA financial statements database.
Findings
Results suggest that marketing investment, price, revenue, brand ownership and perceived quality are highly associated with brand equity, and consequently with a higher brand value in the food industry.
Research limitations/implications
This study has only studied one industry (food), one industry segment (enriched-food) and one country (Italy).
Originality/value
The majority of marketing studies apply a single research approach and measures. This is the first study of brand equity that combines consumer, financial and marketing approaches. The model contributes to theory and practice in terms of suggesting which business drivers create brand value and what type of brand strategy a firm can apply in order to create brand value.
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Diane A. Lawong, Gerald R. Ferris, Wayne A. Hochwarter and John N. Harris
Work environments, which are widely acknowledged to exert strong influences on employee attitudes and behavior, have been studied since the initiation of formal work entities…
Abstract
Work environments, which are widely acknowledged to exert strong influences on employee attitudes and behavior, have been studied since the initiation of formal work entities. Over this time, scholars have identified myriad impactful internal and external factors. Absent though are investigations examining economic downturns despite their acknowledged pervasiveness and destructive effects on worker performance and well-being. To address this theoretical gap, a multistage model acknowledging the impact of recessions on workplace responses, response effects, and environmental considerations is proposed. Inherent in this discussion is the role of economic decline on reactive change processes, the nature of work, and the structure and design of organizations. These significant changes affect employee attitudes and behaviors in ways that increase the political nature of these work environments. Organizational factors and employee responses to heightened recession-driven politics are discussed. Additionally, theoretically relevant intervening variables capable of influencing work outcomes are described. The chapter is concluded by discussing the implications of this theoretical framework as well as directions for future research.
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Emma L. Friesen, Deborah Theodoros and Trevor G. Russell
The purpose of this paper is to present a preliminary psychometric evaluation of the electronic mobile shower commode assessment tool (eMAST) 1.0.
Abstract
Purpose
The purpose of this paper is to present a preliminary psychometric evaluation of the electronic mobile shower commode assessment tool (eMAST) 1.0.
Design/methodology/approach
A cross-sectional validation study was undertaken with 32 adults with spinal cord injury (SCI), aged 18 years or older, who use mobile shower commodes for toileting and/or showering. The eMAST 1.0, Quebec user evaluation of satisfaction with assistive technology, Version 2.0 (QUEST 2.0), and modified system usability scale (SUS) were administered online via SurveyMonkey. The eMAST 1.0 was re-administered approximately seven days later. Psychometric properties of internal consistency, test-retest reliability, and convergent validity were assessed.
Findings
As hypothesised, the eMAST 1.0 demonstrated strong internal consistency (Cronbach’s α=0.73, N=32); acceptable test-retest reliability (intra-class coefficient (3, 1)=0.75 (0.53-0.88, 95 per cent confidence interval) (n=27)); and strong, positive correlations with the QUEST 2.0’s devices subscale and modified SUS (Pearson’s correlation coefficients 0.70 and 0.63, respectively).
Research limitations/implications
The sample was not fully representative of Australian data in terms of gender, or state of residence, but was representative in terms of SCI level. Age data were not assessed. The sample size was small but adequate for a preliminary psychometric evaluation.
Originality/value
The preliminary psychometric evaluation indicates the eMAST 1.0 is a valid and reliable instrument that measures usability of MSCs for adults with SCI. It may be useful for exploring relationships between usability and satisfaction of MSCs.
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Alec Koch, Russell G. Ryan and Laura K. Bennett
To provide analysis on several SEC enforcement actions of interest to broker-dealers and investment advisers.
Abstract
Purpose
To provide analysis on several SEC enforcement actions of interest to broker-dealers and investment advisers.
Design/methodology/approach
The article is organized chronologically based on the dates of the SEC enforcement actions discussed.
Findings
The SEC enforcement actions discussed in the article demonstrate that broker-dealers and investment advisers must maintain and enforce compliance and supervision policies and procedures reasonably designed to detect and prevent violations of the securities laws. When firm personnel commit violations (either intentionally or inadvertently), the SEC will evaluate whether firms could have been more effective in detecting and preventing those violations.Some of these cases also serve to remind firms that the SEC will often take enforcement action even when there is no evidence of customer harm.
Originality/value
Practical guidance from experienced securities lawyers that consolidates and analyzes several recent SEC enforcement actions.
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Michael Levi and Russell G. Smith
This study aims to draw out the common characteristics of frauds associated with pandemics and to identify any risks unique to them.
Abstract
Purpose
This study aims to draw out the common characteristics of frauds associated with pandemics and to identify any risks unique to them.
Design/methodology/approach
It considers the range of frauds and their reporting lags and examines what is known about current frauds against individuals, businesses and government, principally using public and private sector data from Australia and the UK.
Findings
The study identifies some novel crime types and methodologies arising during the current pandemic that were not seen in previous pandemics. These changes may result from public health measures taken in response to COVID-19, the current state of technologies and the activities of law enforcement and regulatory guardians. It shows that many frauds would occur anyway, but some specific – mainly online – frauds occur during pandemics, and because of large scale government assistance programmes to businesses and individuals, far more opportunities were created from COVID-19 than in previous eras.
Social implications
The study concludes with a discussion of the policy implications for prevention, resilience and for private and public policing and criminal justice. It stresses that plans for future pandemics must include provisions for better early monitoring and control of fraud and associated procurement corruption and notes that these require greater political will and organisation. It recommends a more serious analysis of the impact of prevention communications outreach to citizens, businesses and government.
Originality/value
The study uses fresh data on frauds from the private and public sectors and assesses some measures of control in a holistic way.
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