Search results

21 – 30 of 309
Book part
Publication date: 27 August 2014

Damian Tago, Henrik Andersson and Nicolas Treich

This study contributes to the understanding of the health effects of pesticides exposure and of how pesticides have been and should be regulated.

Abstract

Purpose

This study contributes to the understanding of the health effects of pesticides exposure and of how pesticides have been and should be regulated.

Design/methodology/approach

This study presents literature reviews for the period 2000–2013 on (i) the health effects of pesticides and on (ii) preference valuation of health risks related to pesticides, as well as a discussion of the role of benefit-cost analysis applied to pesticide regulatory measures.

Findings

This study indicates that the health literature has focused on individuals with direct exposure to pesticides, i.e. farmers, while the literature on preference valuation has focused on those with indirect exposure, i.e. consumers. The discussion highlights the need to clarify the rationale for regulating pesticides, the role of risk perceptions in benefit-cost analysis, and the importance of inter-disciplinary research in this area.

Originality/value

This study relates findings of different disciplines (health, economics, public policy) regarding pesticides, and identifies gaps for future research.

Details

Preference Measurement in Health
Type: Book
ISBN: 978-1-78441-029-2

Keywords

Book part
Publication date: 23 September 2016

Zhaocheng (Elly) Zeng and Benson Honig

Entrepreneurship education has been largely treated as a pedagogical “black box.” Despite the emergence of popular entrepreneurship models such as business planning, the lean…

Abstract

Entrepreneurship education has been largely treated as a pedagogical “black box.” Despite the emergence of popular entrepreneurship models such as business planning, the lean startup, or business model canvas, neither theoretical nor pedagogical foundations are typically evident. This limits the accumulation of useful evidence that could inform better teaching practices. In this chapter, we develop a set of conceptual models anchored in learning theory regarding how entrepreneurship education should be taught to students. These conceptual models are built on the techniques of entrepreneurship pedagogy such as experiential education. They are developed for three groups of students: students without any entrepreneurship experience, students with previous entrepreneurship experience, and students who are currently running their start-ups. A set of potential variables that could be used for course evaluation purposes is also included. The proposed models meet the needs of students with different levels of entrepreneurship experience. Theoretically, we demonstrate that entrepreneurship students should not be treated as a homogeneous group, as they have different levels of startup experience and different educational needs. Lecturers of entrepreneurship programs could choose the suitable model proposed in this chapter in teaching based on the characteristics of their students. The chapter provides novel insights with regard to how entrepreneurship programs should be designed for students with different levels of entrepreneurship experience.

Details

Models of Start-up Thinking and Action: Theoretical, Empirical and Pedagogical Approaches
Type: Book
ISBN: 978-1-78635-485-3

Keywords

Article
Publication date: 6 January 2023

Haowen Luo, Steven A. Hanke and Hui Hanke

This paper aims to examine the customer-based and supplier-based trade credit gaps for USA firms from 1970 to 2020.

Abstract

Purpose

This paper aims to examine the customer-based and supplier-based trade credit gaps for USA firms from 1970 to 2020.

Design/methodology/approach

The authors' study examines USA companies from 1970 to 2020. The authors begin with an analysis of the trends in aggregate working capital, the capital's components and the trade credit gaps. Various regression models are used to estimate the impacts of identified firm characteristics and unidentified sources on customer-based and supplier-based trade credit gaps over time. The authors then decompose the impacts of firm characteristics to further understand whether changing firm characteristics and/or changing sensitivity to firm characteristics drive the variation in trade credit gaps.

Findings

There is a gradual reduction in the customer-based trade credit gap and a substantial expansion in the supplier-based trade credit gap. Though identified firm characteristics have dominant impacts on observed trade credit gaps, there is evidence of the effects of time and unobservable factors. The main source of changes in customer-based and supplier-based trade credit gaps lies in changes in sensitivity to firm characteristics. In addition, the authors find that firm age is the factor with the largest average effect on both trade credit gaps when examining the full sample period. However, different firm characteristics appear to be the key driver of variations in trade credit gaps over time and across the two types of trade credit gaps. The authors also find that financial distress has the least impact on both customer-based and supplier-based trade gaps. There are variations in the firm characteristics with the largest impacts when evaluating decade-long evaluation periods.

Originality/value

To the authors' knowledge, this is the first paper to examine the customer-based and supplier-based trade credit gaps. The connection between trade credit and the trade credit's corresponding inventory (INV) component extends prior literature on the joint management of trade credit and INV. The authors analyze both identified firm characteristics and unidentified sources in the search for explanations of the trade credit gaps. Furthermore, the authors' study explores the channels through which firm characteristics affect different types of trade credit gaps. The authors' findings help identify relevant and irrelevant risk factors of corporate working capital policy.

Details

Managerial Finance, vol. 49 no. 8
Type: Research Article
ISSN: 0307-4358

Keywords

Book part
Publication date: 26 November 2018

Jörg Hruby, Rodrigo Jorge de Melo, Eyden Samunderu and Jonathan Hartel

Global Mindset (GM) is a multifaceted construct that has received broad interest among practitioners and academics. It is a fragmented construct at this point in time, due to…

Abstract

Global Mindset (GM) is a multifaceted construct that has received broad interest among practitioners and academics. It is a fragmented construct at this point in time, due to definitional overlap with other constructs such as global leadership and cultural intelligence. This overlap has created complexity for research that attempts to understand GM in isolation. Lack of clear boundaries in defining and conceptualizing this construct challenges researchers who are attempting to capture fully what constitutes GM. Our work seeks to better understand and explain what underlines the individual GM construct and how does this impact the development of global competencies in individual managers.

We systematically review and analyze the individual GM literature thematically to provide an overview of the extant research from a broad array of scholarly sources dating from 1994 to 2017. Our work offers a thematic analysis that provides a visual guide to GM by tracking the corpus of individual-level GM studies. We categorize the research according to its theoretical groundings and basic concepts and proceed review how GM has been operationalized at the individual level and measured. Next, we integrate major dimensions in the GM research and propose a framework to enhance understanding of the phenomenon. Finally, we discuss the implications of our review for the development of GM for practitioners, coaches and trainers.

Details

Advances in Global Leadership
Type: Book
ISBN: 978-1-78754-297-6

Keywords

Article
Publication date: 20 March 2017

Sebastian Stöckl, Michael Hanke and Martin Angerer

The purpose of this paper is to create a universal (asset-class-independent) portfolio risk index for a global private investor.

Abstract

Purpose

The purpose of this paper is to create a universal (asset-class-independent) portfolio risk index for a global private investor.

Design/methodology/approach

The authors first discuss existing risk measures and desirable properties of a risk index. Then, they construct a universal (asset-class-independent) portfolio risk measure by modifying Financial Turbulence of Kritzman and Li (2010). Finally, the average portfolio of a representative global private investor is determined, and, by applying the new portfolio risk measure, they derive the Private investor Risk IndeX.

Findings

The authors show that this index exhibits commonly expected properties of risk indices, such as proper reaction to well-known historical market events, persistence in time and forecasting power for both risk and returns to risk.

Practical implications

A dynamic asset allocation example illustrates one potential practical application for global private investors.

Originality/value

As of now, a risk index reflecting the overall risk of a typical multi-asset-class portfolio of global private investors does not seem to exist.

Details

The Journal of Risk Finance, vol. 18 no. 2
Type: Research Article
ISSN: 1526-5943

Keywords

Article
Publication date: 27 January 2022

Matthias Kowalski, Martin Hanke and Christian Kreischer

Resolving eddy currents in three dimensions with finite elements, especially in geometrically complex structures, is very time consuming. Notable additional efforts will be…

Abstract

Purpose

Resolving eddy currents in three dimensions with finite elements, especially in geometrically complex structures, is very time consuming. Notable additional efforts will be required, if these eddy currents are influenced by magnetic fields arising from larger parts or range over widespread regions. The purpose of this article is to present a new sub-modelling simulation technique, based on the finite-element approach. This method offers remarkable advantages for solving this type of problems.

Design/methodology/approach

A novel sub-modeling technique is developed for the finite-element method addressing this problem by dividing the process into two steps: firstly, a simulation of a “source”-model is carried out providing magnetic field distributions within the entire domain neglecting local eddy current effects and without modeling it in full detailed geometry. A subsequent “sub”-model comprises only the region of interest in higher resolution and is solved while being constrained with boundary conditions derived from the previous source-model. An implementation in ANSYS Mechanical is carried out with the objective to validate finite-element simulation against measurement results.

Findings

The proposed simulation technique performs robustly and time efficiently. Applying this method to an end-region of a turbogenerator allows comparisons with test data of this region for validation purposes. The comparison between measured and simulated radial flux densities shows good correspondence.

Originality/value

This work is novel in many aspects: a new technique for three-dimensional (3D) finite-element method using edge-elements is introduced. To the best of the authors’ knowledge, for the first time, these 3D sub-models are compared against measurement results of an electric machine with net currents. Leveraged from this work, detailed analyses of eddy current phenomena under influences of external magnetic fields can be investigated in higher detail within shorter calculation times.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 41 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 14 July 2014

Omar Lizardo and Melissa Fletcher Pirkey

Traditionally, organizational theory has been a receptacle of methods and mechanisms from network theory. In this paper, we argue that organizational theory can also be an active…

Abstract

Traditionally, organizational theory has been a receptacle of methods and mechanisms from network theory. In this paper, we argue that organizational theory can also be an active contributor to network theory’s conceptual development. To that end, we make explicit a theoretical strategy that has only been used informally by network theorists so far, which – following Vaughan (2002) – we refer to as analogical theorizing. Using the basic correspondence between dyadic relationships as the most minimal form of “organization,” we show that processes and mechanisms extracted from various theoretical strands of organizational theory can be mapped onto the dynamics of social relationships. This allows us to build novel theoretical insight as it pertains to issue of relationship emergence, maintenance, and decay in social networks.

Details

Contemporary Perspectives on Organizational Social Networks
Type: Book
ISBN: 978-1-78350-751-1

Keywords

Article
Publication date: 1 April 2002

Mary Beth Stanek

Discusses the way countries can operate their exchange rate policies. Covers areas such as fixed exchange rates, floating rates and pegged rates, citing the advantages and…

2555

Abstract

Discusses the way countries can operate their exchange rate policies. Covers areas such as fixed exchange rates, floating rates and pegged rates, citing the advantages and disadvantages of each. Considers the example of the Euro‐zone countries and the problems they face. Looks at countries which use official dollar‐linked systems. Outlines the three primary types of risk exposure, transaction, economic and translation and presents some examples of how companies have mitigated risk. Briefly looks at rate forecasting. Concludes that a global market could lead to fewer currencies.

Details

Management Research News, vol. 25 no. 4
Type: Research Article
ISSN: 0140-9174

Keywords

Article
Publication date: 17 October 2018

Susan Liscouet-Hanke, Arash Shafiei, Luiz Lopes and Sheldon Williamson

This paper aims to analyze the viability of a solar power system as a supplemental power source for commercial and business aircraft.

Abstract

Purpose

This paper aims to analyze the viability of a solar power system as a supplemental power source for commercial and business aircraft.

Design/methodology/approach

First, a model is established to estimate the potential available power from suitable aircraft surfaces for various meteorological conditions, ground and flight mission characteristics. A proposed aircraft system architecture and an associated parametric conceptual sizing model are presented. This supplemental solar power system sizing model is integrated into an aircraft multidisciplinary design optimization environment to evaluate the aircraft-level impact on mission fuel burn. A parametric study for a business jet aircraft is performed to analyze various solar cell types and power densities for converters. Trade-off studies are performed between efficiency and weight.

Findings

Considering today’s efficiency and power-to-weight ratio of the system components, overall fuel burn reduction can be achieved. Therefore, the technology development work can start now to target short to mid-term applications. In addition, promising system integration scenarios are identified, such as the use of solar power for autonomous operation of the air conditioning system on ground, which yield potential further benefit. In conclusion, a supplemental solar power system seems a promising candidate for more efficient aircraft operation.

Originality/value

The presented novel supplemental solar power system architecture concept and its foreseen aircraft integration show potential benefits for near term applications. The results show that the break even for this technology is already reached and therefore build the foundation to further investigate the technology integration challenges. Clear directions for future research and development are outlined enabling the advancement of the technology readiness level.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 8
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 1 April 1996

Julio O. De Castro, G. Dale Meyer, Kelly C. Strong and Nikolaus Uhlenbruck

The privatization of State Owned Enterprises (SOE) has significant implications for SOE stakeholders. However, the effects on stakeholders will vary depending on characteristics…

Abstract

The privatization of State Owned Enterprises (SOE) has significant implications for SOE stakeholders. However, the effects on stakeholders will vary depending on characteristics of the privatization process and the structure of the SOE. This paper identifies privatization process characteristics of wealth creation and wealth distribution, and describes SOE structures on a continuum between government corporation and government agency. The privatization effectiveness for stakeholders is discussed and examples provided for each classification of privatization.

Details

The International Journal of Organizational Analysis, vol. 4 no. 4
Type: Research Article
ISSN: 1055-3185

21 – 30 of 309