Search results

1 – 10 of 128
Open Access
Article
Publication date: 6 June 2023

Sándor Erdős and Patrik László Várkonyi

The purpose of this study is to examine herd behaviour under different market conditions, examine the potential impact of the firm size and stock characteristics on this…

Abstract

Purpose

The purpose of this study is to examine herd behaviour under different market conditions, examine the potential impact of the firm size and stock characteristics on this relationship, and explore how herding affects market prices in the German market.

Design/methodology/approach

The authors apply a method that does not rely on theoretical models, thus eliminating the biases inherent in their application. This technique is based on the assumption that macro herding manifests itself in the synchronicity (comovement) of stock returns.

Findings

The study’s findings show that herding is more pronounced in down markets and is more pronounced when market returns reach extreme levels. Additionally, the authors have found that there is stronger herding among large companies compared to small companies, and that stock characteristics considered have no effect on the degree of macro herding. Results also suggest that the contemporaneous market-wide information drives macro herding and that macro herding facilitates the incorporation of market-wide information into prices.

Practical implications

The study’s results strongly support the idea of directional asymmetry, which holds that stocks react quickly to negative macroeconomic news while small stocks react slowly to positive macroeconomic news. Additionally, the study’s results suggest that the contemporaneous market-wide information drives macro herding and that macro herding facilitates the rapid incorporation of market-wide information into prices.

Originality/value

To the best of the researchers’ knowledge, this is the first study that examines macro herding for a major financial market using a herding measure based on the co-movement of returns that does not rely on theoretical models.

Details

Review of Behavioral Finance, vol. 16 no. 2
Type: Research Article
ISSN: 1940-5979

Keywords

Open Access
Article
Publication date: 16 August 2022

Tünde Erdös, Joshua Wilt and Michael Tichelmann

Little is known about how individual differences play out in the process of authentic self-development (ASD) through workplace coaching. This article explores whether the Big Five…

2060

Abstract

Purpose

Little is known about how individual differences play out in the process of authentic self-development (ASD) through workplace coaching. This article explores whether the Big Five personality traits and affective, behavioral, cognitive and desire (ABCDs) components of the Big Five personality traits were relevant to ASD, specifically examining the role of affect as a potential mediator.

Design/methodology/approach

In total, 176 clients' personality was assessed pre-coaching. Aspects of ASD (perceived competence, goal commitment, self-concordance and goal stability) were assessed post-coaching. Clients' affect balance (AB) scores were obtained post-session.

Findings

Multilevel path models showed that higher levels of mean AB (but not the slope) mediated the associations between personality and perceived competence and goal commitment. Personality predicted goal self-concordance, but these effects were not mediated by AB, neither personality nor AB predicted goal stability.

Research limitations/implications

The authors encourage randomized controlled trials to further test findings of this study. Ruling out method variance is not possible completely. However, the authors put forth considerations to support the authors' claim that method variance did not overly influence our results.

Practical implications

These results suggest the necessity of an optimal experience of affect for ASD in workplace coaching and the understanding of how ABCDs, AB and ASD are related beyond coaching psychology.

Social implications

A deeper understanding of personality processes is important for fostering ASD to meet the challenges of management development in the authors' volatility, uncertainty, complexity and ambiguity (VUCA) world.

Originality/value

This is the first study to test personality as a process in workplace coaching linking personality to one of the most valued leadership skills: authenticity.

Details

Journal of Management Development, vol. 41 no. 6
Type: Research Article
ISSN: 0262-1711

Keywords

Article
Publication date: 11 October 2022

Mary Hogue, Deborah Erdos Knapp, Jessica A. Peck and Velvet Weems-Landingham

Little research directly examines leader self-development among marginalized workers. The authors offer a framework to explain the role of internalized prejudice in limiting…

Abstract

Purpose

Little research directly examines leader self-development among marginalized workers. The authors offer a framework to explain the role of internalized prejudice in limiting leader self-development, and the authors use that framework to suggest organizational interventions aimed at enhancing leader self-development among marginalized workers.

Design/methodology/approach

The framework is grounded in the incompleteness thesis with its attention to the mutual shaping of culture and mind, and the interventions are drawn from principles of social movements with their focus on changing culture and the minds of individuals. The framework and interventions address the role of status in internalized prejudice.

Findings

Status-related experiences in culture shape status-related thoughts in the mind, resulting in internalized prejudice. Internalized prejudice reduces the status-related behavior of leader self-development, which serves to shape status in the culture. This repeats in an ongoing, recursive process that can be disrupted through organizational interventions. The social movement principles of common purpose and networking can provide new status-related experiences to reduce internalized prejudice, and habit-breaking can stop automatic self-limiting behaviors that can arise from internalized prejudice.

Originality/value

By focusing on status, the authors provide a framework that allows integration of literature across marginalized groups, providing a guide for understanding both commonality and uniqueness of experience. The authors bring principles of social movement to the discussion of leader self-development among marginalized workers as a guide for developing organizational interventions.

Details

Management Decision, vol. 61 no. 4
Type: Research Article
ISSN: 0025-1747

Keywords

Article
Publication date: 13 September 2021

Bence Tipary, András Kovács and Ferenc Gábor Erdős

The purpose of this paper is to give a comprehensive solution method for the manipulation of parts with complex geometries arriving in bulk into a robotic assembly cell. As…

Abstract

Purpose

The purpose of this paper is to give a comprehensive solution method for the manipulation of parts with complex geometries arriving in bulk into a robotic assembly cell. As bin-picking applications are still not reliable in intricate workcells, first, the problem is transformed to a semi-structured pick-and-place application, then by collecting and organizing the required process planning steps, a methodology is formed to achieve reliable factory applications even in crowded assembly cell environments.

Design/methodology/approach

The process planning steps are separated into offline precomputation and online planning. The offline phase focuses on preparing the operation and reducing the online computational burdens. During the online phase, the parts laying in a semi-structured arrangement are first recognized and localized based on their stable equilibrium using two-dimensional vision. Then, the picking sequence and corresponding collision-free robot trajectories are planned and optimized.

Findings

The proposed method was evaluated in a geometrically complex experimental workcell, where it ensured precise, collision-free operation. Moreover, the applied planning processes could significantly reduce the execution time compared to heuristic approaches.

Research limitations/implications

The methodology can be further generalized by considering multiple part types and grasping modes. Additionally, the automation of grasp planning and the enhancement of part localization, sequence planning and path smoothing with more advanced solutions are further research directions.

Originality/value

The paper proposes a novel methodology that combines geometrical computations, image processing and combinatorial optimization, adapted to the requirements of flexible pick-and-place applications. The methodology covers each required planning step to reach reliable and more efficient operation.

Article
Publication date: 19 January 2015

Sameer Kumar

The purpose of this paper is to attempt to provide a review of the growing literature on co-authorship networks and the research gaps that may be investigated for future studies…

3674

Abstract

Purpose

The purpose of this paper is to attempt to provide a review of the growing literature on co-authorship networks and the research gaps that may be investigated for future studies in this field.

Design/methodology/approach

The existing literature on co-authorship networks was identified, evaluated and interpreted. Narrative review style was followed.

Findings

Co-authorship, a proxy of research collaboration, is a key mechanism that links different sets of talent to produce a research output. Co-authorship could also be seen from the perspective of social networks. An in-depth analysis of such knowledge networks provides an opportunity to investigate its structure. Patterns of these relationships could reveal, for example, the mechanism that shapes our scientific community. The study provides a review of the expanding literature on co-authorship networks.

Originality/value

This is one of the first comprehensive reviews of network-based studies on co-authorship. The field is fast evolving, opening new gaps for potential research. The study identifies some of these gaps.

Details

Aslib Journal of Information Management, vol. 67 no. 1
Type: Research Article
ISSN: 2050-3806

Keywords

Article
Publication date: 30 November 2021

Bence Tipary and Ferenc Gábor Erdős

The purpose of this paper is to propose a novel measurement technique and a modelless calibration method for improving the positioning accuracy of a three-axis parallel kinematic…

Abstract

Purpose

The purpose of this paper is to propose a novel measurement technique and a modelless calibration method for improving the positioning accuracy of a three-axis parallel kinematic machine (PKM). The aim is to present a low-cost calibration alternative, for small and medium-sized enterprises, as well as educational and research teams, with no expensive measuring devices at their disposal.

Design/methodology/approach

Using a chessboard pattern on a ground-truth plane, a digital indicator, a two-dimensional eye-in-hand camera and a laser pointer, positioning errors are explored in the machine workspace. With the help of these measurements, interpolation functions are set up per direction, resulting in an interpolation vector function to compensate the volumetric errors in the workspace.

Findings

Based on the proof-of-concept system for the linear-delta PKM, it is shown that using the proposed measurement technique and modelless calibration method, positioning accuracy is significantly improved using simple setups.

Originality/value

In the proposed method, a combination of low-cost devices is applied to improve the three-dimensional positioning accuracy of a PKM. By using the presented tools, the parametric kinematic model is not required; furthermore, the calibration setup is simple, there is no need for hand–eye calibration and special fixturing in the machine workspace.

Details

Industrial Robot: the international journal of robotics research and application, vol. 49 no. 1
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 27 March 2023

Dong-Heon Kwak, Derek L. Nazareth, Saerom Lee, Jinwoong Lee, Greta L. Polites and Deborah Erdos Knapp

Drawing upon the consistency literature, the theory of visual rhetoric and social judgment of warmth and competence, this study examines the determinants and impacts of perceived…

Abstract

Purpose

Drawing upon the consistency literature, the theory of visual rhetoric and social judgment of warmth and competence, this study examines the determinants and impacts of perceived interface design consistency in the context of charity websites.

Design/methodology/approach

To identify design factors of perceived interface design consistency, this study separates charity website interface design into two aspects: main appeal design (i.e. appeal quality) and peripheral design (i.e. image type). The authors designed a two (appeal quality: low vs high) × three (image type: control vs adults vs children) controlled lab experiment to investigate the effects of various interface choices. A total of 217 subjects participated in the experiment. The authors used structural equation model (SEM) analysis and analysis of covariance (ANCOVA) to test the research hypotheses.

Findings

This study found that appeal quality and human images increase perceived interface design consistency. The authors also found that the relationship between appeal quality and perceived interface design consistency is moderated by image type. Finally, the authors showed that perceived interface design consistency increases perceived warmth and competence of charity websites, which in turn affect intention to use the website for donations.

Originality/value

The authors’ findings provide novel insights for theory on consistency and interface design and practical implications for charity website designers by identifying determinants and consequences of perceived interface design consistency.

Details

Internet Research, vol. 33 no. 3
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 17 April 2007

Nikolaos Korfiatis, Marios Poulos and George Bokos

The purpose of this research is to address the need for a definition of metadata descriptors for use in enhancing the accuracy of bibliometric instruments of scholarly evaluation…

1154

Abstract

Purpose

The purpose of this research is to address the need for a definition of metadata descriptors for use in enhancing the accuracy of bibliometric instruments of scholarly evaluation, such as the impact factor.

Design/methodology/approach

A semantic vocabulary – COAP – is constructed, deployed on top of the Resource Description Framework (RDF), by extending the Friend‐of‐a‐Friend (FOAF) schema.

Findings

An extension of the FOAF vocabulary is considered as the ability to describe a publication record such as this paper in terms of scholar contributions and participations. In order to achieve that, the FOAF vocabulary is extended.

Practical implications

The application of this semantic vocabulary could be used as a way of enhancing the accuracy of source data for bibliometric evaluation instruments.

Originality/value

The paper discusses how metadata descriptors can contribute to the improvement of already established scholar evaluation instruments such as the impact factor. It will be of use in the development of digital libraries.

Details

The Electronic Library, vol. 25 no. 2
Type: Research Article
ISSN: 0264-0473

Keywords

Article
Publication date: 9 October 2020

Zsolt Bedő, Katalin Erdős and Luke Pittaway

Research on entrepreneurial ecosystems has advanced over recent years and has become a popular topic. Despite the interest, previous work has focused on entrepreneurial ecosystems…

Abstract

Purpose

Research on entrepreneurial ecosystems has advanced over recent years and has become a popular topic. Despite the interest, previous work has focused on entrepreneurial ecosystems in large cities in the United States. Ecosystems in small cities, underpopulated rural areas, university towns and outside the USA have not been considered much. This paper begins to address this deficit by reviewing three groups of literature.

Design/methodology/approach

From the review, the paper builds a conceptual framework to consider entrepreneurial ecosystems led by universities. After summarizing the literature on entrepreneurial ecosystems, entrepreneurial universities and entrepreneurship education, the paper suggests a conceptual framework outlying the structure, components and mechanisms that enable universities to operate as catalysts in the creation of entrepreneurial ecosystems.

Findings

It is evident that on many of the “ingredients” of a successful entrepreneurial ecosystem, a resource-constrained environment would have many gaps. Building an entrepreneurship ecosystem in such contexts would be inherently challenging. The model presented suggests that the presence of a university in such locations should enhance the prospects of progress but that the nature of the university itself would impact any outcomes. Universities that make concerted efforts to be entrepreneurial and that have entrepreneurship programmes have strategies available to them that can enhance entrepreneurship ecosystems over time.

Originality/value

The contribution of this paper is to show “how” a university and its entrepreneurship programme can operationally address deficits in a local ecosystem and how it might bring about positive change. The paper also opens new avenues for entrepreneurship education researchers.

Details

Journal of Small Business and Enterprise Development, vol. 27 no. 7
Type: Research Article
ISSN: 1462-6004

Keywords

Article
Publication date: 1 January 1990

Leslie de Chernatony

There is an erroneously held view that postal surveys cannotachieve sufficient response rates to overcome non‐response bias and arebest suited when budgets are limited. This…

Abstract

There is an erroneously held view that postal surveys cannot achieve sufficient response rates to overcome non‐response bias and are best suited when budgets are limited. This article reviews the increasing number of published studies which show that, with planning, high response rates can be achieved. It reports on a survey of members of the Postal Research Special Interest Group (formed under the auspices of the Market Research Society). Current postal research practice is highlighted and inferences drawn about the mechanics associated with high response rates.

Details

Marketing Intelligence & Planning, vol. 8 no. 1
Type: Research Article
ISSN: 0263-4503

Keywords

1 – 10 of 128