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Article
Publication date: 22 December 2021

Bongumusa Prince Makhoba, Irrshad Kaseeram and Lorraine Greyling

This study aims to interrogate dynamic asymmetric relationships between public debt and economic growth in Southern African Developing Communities (SADC), over the period…

Abstract

Purpose

This study aims to interrogate dynamic asymmetric relationships between public debt and economic growth in Southern African Developing Communities (SADC), over the period 2000–2018.

Design/methodology/approach

The study employed a panel smooth transition regression (PSTR) technique to analyse dynamic asymmetric relationships between public debt and economic growth, and the threshold effect at which public debt hampers economic growth.

Findings

The findings indicate that there is a significant nonlinear effect of debt on economic growth in SADC. The study discovered a debt threshold of 60% to GDP at which debt beyond this threshold deteriorates long-term growth. The low-debt regime was found to be positive and statistically significant, while the high-debt regime is detrimental for long-term growth. Fiscal policymakers ought to consider the adoption of well-coordinated debt policies that aims to strike a balance between sustainable public debt and economic growth, within a reasonable threshold target.

Originality/value

The study focusses on asymmetric and threshold analysis of public debt on economic growth in SADC using sophisticated panel smooth transition regression (STAR). This study provides rigorous empirical evidence within the SADC perspective in which previous studies have predominantly been confined in advanced economies.

Details

African Journal of Economic and Management Studies, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-0705

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Article
Publication date: 22 December 2021

Paul Nayaga, Frank Adusah-Poku, John Bosco Dramani and Paul Owusu Takyi

The quest for economic development has brought adverse effects on the environment through the release of greenhouse gases, such as carbon dioxide (CO2). This will counter…

Abstract

Purpose

The quest for economic development has brought adverse effects on the environment through the release of greenhouse gases, such as carbon dioxide (CO2). This will counter the efforts to achieve the Sustainable Development Goals (SDGs) by 2030. This study, therefore, investigates the effect of electricity consumption and urbanization on CO2 emissions in Ghana. Electricity consumption and urbanization are among the factors that can be used to reduce CO2 emissions.

Design/methodology/approach

Following the STIRPAT framework with the Hansen (2000) least squares threshold estimation strategy, the study employed annual time series data from 1971 to 2019.

Findings

The study revealed a single threshold effect of both electricity consumption and urbanization on CO2 emissions. Electricity consumption intensity reduces CO2 emission when electricity consumption is below the threshold (6287GWh) but increases when consumption passes the threshold. However, urbanization exerts a positive influence on CO2 emissions regardless the level of urbanization (either before or after the threshold point). Again, the empirical results revealed that the urbanization threshold moderates the effect of electricity consumption on CO2 emissions.

Research limitations/implications

Policymakers have to consider redesigning the current urbanization mode to include some new-type urbanization elements.

Originality/value

The threshold effect of electricity consumption and urbanization on CO2 emissions in Ghana is examined using the Hansen (2000) least square method.

Details

Management of Environmental Quality: An International Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 13 June 2016

Christopher Bajada and Rowan Trayler

– To introduce to the special issues on threshold concepts in business education.

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Abstract

Purpose

To introduce to the special issues on threshold concepts in business education.

Design/methodology/approach

Provides an overview of the various papers comprising this special issue.

Findings

There are no specific findings in this paper as its purpose is to introduce the selected papers in this special issue.

Originality/value

Editorial.

Details

Education + Training, vol. 58 no. 5
Type: Research Article
ISSN: 0040-0912

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Article
Publication date: 25 September 2018

Jianhua Cai

This paper aims to explore a new wavelet adaptive threshold de-noising method to resolve the shortcomings of wavelet hard-threshold method and wavelet soft-threshold

Abstract

Purpose

This paper aims to explore a new wavelet adaptive threshold de-noising method to resolve the shortcomings of wavelet hard-threshold method and wavelet soft-threshold method, which are usually used in gear fault diagnosis.

Design/methodology/approach

A new threshold function and a new determined method of threshold for each layer are proposed. The principle and the implementation of the algorithm are given. The simulated signal and the measured gear fault signal are analyzed, and the obtained results are compared with those from wavelet soft-threshold method, wavelet hard-threshold method and wavelet modulus maximum method.

Findings

The presented wavelet adaptive threshold method overcomes the defects of the traditional wavelet threshold method, and it can effectively eliminate the noise hidden in the gear fault signal at different decomposition scales. It provides more accurate information for the further fault diagnosis.

Originality/value

A new threshold function is adopted and the multi-resolution unbiased risk estimation is used to determine the adaptive threshold, which overcomes the defect of the traditional wavelet method.

Details

Industrial Lubrication and Tribology, vol. 71 no. 1
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 21 September 2021

Maximilian Bär, Nadine Gatzert and Jochen Ruß

The aim of this paper is to modify the shape of utility functions traditionally used in expected utility theory (EUT) to derive optimal retirement saving decisions…

Abstract

Purpose

The aim of this paper is to modify the shape of utility functions traditionally used in expected utility theory (EUT) to derive optimal retirement saving decisions. Inspired by current reference point based approaches, the authors argue that utility functions with jumps or kinks at certain threshold points might very well be rational.

Design/methodology/approach

The authors suggest an alternative to typical utility functions used in EUT, to be applied in the context of retirement saving decisions. The authors argue that certain elements that are used to model biases in behavioral models should–in the context of optimal retirement saving decisions–be considered “rational” and hence be included in a normative setting as well. The authors compare the optimal asset allocation derived under such utility functions with results under traditional power utility.

Findings

The authors find that the considered threshold levels can have a significant impact on the optimal investment decision for some individuals. In particular, the authors show that a much riskier investment than under EUT can become optimal if some level of income is secured by a social security and a significant portion of the distribution of terminal wealth lies below this level.

Originality/value

Contrary to previous work, this model is especially designed to assess the question of optimal product choice/asset allocation in the specific setting of retirement planning and from a normative point of view. In this regard, the authors first motivate the use of several thresholds and then apply this approach in a capital market model with stochastic stocks and stochastic interest rates to two illustrative investment alternatives.

Details

The Journal of Risk Finance, vol. 22 no. 5
Type: Research Article
ISSN: 1526-5943

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Article
Publication date: 14 October 2021

Manish Bansal, Taab Ahmad Samad and Hajam Abid Bashir

This study aims to provide a convincing argument behind the mixed findings on the association between sustainability reporting and firm performance by investigating the…

Abstract

Purpose

This study aims to provide a convincing argument behind the mixed findings on the association between sustainability reporting and firm performance by investigating the possibility of a non-linear relationship through a threshold model.

Design/methodology/approach

This study used (Hansen’s 1999) threshold framework to investigate the relationship between firm performance and sustainability reporting using a sample of 210 Bombay Stock Exchange-listed firms spanning over 10 years from March 2010 to March 2019. This framework helps to test the threshold effect’s presence, estimate the threshold value and check the authenticity of the estimated threshold value.

Findings

Sustainability reporting has a differential threshold impact on the different indicators of firm performance. On the one hand, the authors’ results illustrate that the firms’ operating performance is positively impacted if and only if the sustainability reporting crosses a certain threshold. On the other hand, sustainability reporting positively impacts firms’ market performance only up to a cut-off point.

Practical implications

Managers should strive to balance sustainability reporting to reap its desired benefits on firm performance.

Originality/value

This study explores the possible non-linearity in the association between firm performance and sustainability reporting and explains the relationship’s inconclusive results. Further, this study explores the field in the novel emerging economy with unique institutional settings that mandate spending on sustainability activities.

Details

Journal of Global Responsibility, vol. 12 no. 4
Type: Research Article
ISSN: 2041-2568

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Book part
Publication date: 25 April 2014

Malcolm Tight

This chapter examines the case of threshold concepts, as an example of a theory being developed and applied within higher education research. It traces the origins and…

Abstract

This chapter examines the case of threshold concepts, as an example of a theory being developed and applied within higher education research. It traces the origins and meaning of the term, reviews its application by higher education researchers and discusses the issues it raises and the critiques it has attracted. This case is of particular interest, as the idea of threshold concepts is little more than a decade old, yet in that time it has attracted considerable attention.

Details

Theory and Method in Higher Education Research II
Type: Book
ISBN: 978-1-78350-823-5

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Article
Publication date: 21 July 2021

Olumide Olusegun Olaoye, Ambreen Noman and Ezekiel Olamide Abanikanda

The study examines whether the growth effect of government spending is contingent on the level of institutional environment prevalent in Economic Community of West African…

Abstract

Purpose

The study examines whether the growth effect of government spending is contingent on the level of institutional environment prevalent in Economic Community of West African States (ECOWAS).

Design/methodology/approach

The study adopts the more refined and more appropriate dynamic threshold panel by Seo and Shin (2016) and made applicable be Seo et al. (2019). The technique models a nonlinear asymmetric dynamics and cross-sectional heterogeneity simultaneously in a dynamic threshold panel data framework.

Findings

The results show that there is a threshold effect in the government spending-growth relationship. Specifically, the authors found that the impact of government spending on economic growth is positive and statistically significant only above a certain threshold level of institutional development. Below that threshold, the effect of government spending on growth is insignificant and negative at best. The findings suggest that government spending-growth nexus is contingent on the level of Institutional quality.

Originality/value

Unlike previous studies that adopt the linear interaction model which pre-impose a priori conditional restrictions, this study adopts the dynamic threshold panel framework which allows the lagged dependent variable and endogenous covariates.

Details

International Journal of Emerging Markets, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1746-8809

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Book part
Publication date: 22 October 2016

Virginia M. Tucker, Christine Bruce and Sylvia L. Edwards

This chapter explores the potential of grounded theory research methods for eliciting threshold concepts. It begins with an overview of threshold concept theory, then…

Abstract

This chapter explores the potential of grounded theory research methods for eliciting threshold concepts. It begins with an overview of threshold concept theory, then reviews current methodological approaches, as well as challenges encountered, when researching threshold concepts. The discussion argues for the suitability of grounded theory for this purpose, using a specific case for illustration. Specific elements of the research design that strengthened the use of grounded theory in the exploration of threshold concepts are described. The case example used is of graduate students and practicing professionals’ learning experiences when acquiring expertise in the online environment. The case is used to demonstrate the grounded theory method’s efficacy for eliciting evidence of transformative learning experiences, leading to implications for improving curriculum design.

Details

Theory and Method in Higher Education Research
Type: Book
ISBN: 978-1-78635-895-0

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Book part
Publication date: 1 January 2014

Lucinda Ferguson

This article explores the neglected issue of the overrepresentation in the child protection system of children from ethnic, cultural, religious, racial, and linguistic…

Abstract

This article explores the neglected issue of the overrepresentation in the child protection system of children from ethnic, cultural, religious, racial, and linguistic minorities. It focuses on the accommodation of children’s diverse backgrounds within the s 31(2) threshold and s1 “best interests” stages of intervention under the Children Act 1989. First, it introduces the ethnic child protection penalty as a new tool for capturing the complex nature of overrepresentation of these children. Second, it proposes a framework for understanding the judicial approach in higher court decisions on the current extent and nature of accommodation. Third, it employs the penalty concept to help explain why case law analysis reveals difficulties with the current factor-based approach, whereas empirical research suggests generally satisfactory accommodation in practice. It concludes by proposing a contextualized framework for decision-making in relation to child protection.

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