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Book part
Publication date: 3 February 2015

Ammar Y. Alqahtani and Surendra M. Gupta

Economic incentives, government regulations, and customer perspective on environmental consciousness (EC) are driving more and more companies into product recovery…

Abstract

Economic incentives, government regulations, and customer perspective on environmental consciousness (EC) are driving more and more companies into product recovery business, which forms the basis for a reverse supply chain. A reverse supply chain consists a series of activities that involves retrieving used products from consumers and remanufacturing (closed-loop) or recycling (open-loop) them to recover their leftover market value. Much work has been done in the areas of designing forward and reverse supply chains; however, not many models deal with the transshipment of products in multiperiods. Linear physical programming (LPP) is a newly developed method whose most significant advantage is that it allows a decision-maker to express his/her preferences for values of criteria for decision-making in terms of ranges of different degrees of desirability but not in traditional form of weights as in techniques such as analytic hierarchy process, which is criticized for its unbalanced scale of judgment and failure to precisely handle the inherent uncertainty and vagueness in carrying out pair-wise comparisons. In this chapter, two multiperiod models are proposed for a remanufacturing system, which is an element of a Reverse Supply Chain (RSC), and illustrated with numerical examples. The first model is solved using mixed integer linear programming (MILP), while the second model is solved using linear physical programming. The proposed models deliver the optimal transportation quantities of remanufactured products for N-periods within the reverse supply chain.

Details

Applications of Management Science
Type: Book
ISBN: 978-1-78441-211-1

Keywords

Content available
Book part
Publication date: 3 February 2015

Abstract

Details

Applications of Management Science
Type: Book
ISBN: 978-1-78441-211-1

Article
Publication date: 8 July 2021

Faisal Alqahtani, Besma Hamdi and Michael Skully

The purpose of this study is to examine whether the relationship between asset quality and profitability is linear or nonlinear, using a global dataset containing 2,943…

Abstract

Purpose

The purpose of this study is to examine whether the relationship between asset quality and profitability is linear or nonlinear, using a global dataset containing 2,943 banks from advanced and emerging economies.

Design/methodology/approach

The authors use the U-shape test to investigate the existence of a nonlinear relationship between asset quality and profitability. In addition, the dynamic panel generalised method of moments (GMM) and quantile regression are used to examine the nonlinear effect of profitability on nonperforming loans (NPLs).

Findings

After controlling for macroeconomic and bank internal factors, the authors find empirical evidence supporting the existence of a nonlinear relationship in the form of a U-shape. This is also confirmed through the three-stage U test procedure. After distinguishing between advanced and emerging economies, the authors also find that, in advanced markets, the credit policy responds more rapidly to changes in credit market conditions than in emerging markets, providing insights into credit market dynamics.

Research limitations/implications

Further research can check the robustness of this study’s findings in different markets and investigate the existence of nonlinearity in other bank variables.

Practical implications

In a nutshell, the results demonstrate potential implications for policymakers who need to carefully monitor banks' lending behaviour to ensure that banks do not lower lending standards. In addition, banking regulators and supervisors should consider the possible nonlinear relationship in their risk assessments and macrostress tests. Further, these results are important for bank managers, who should monitor the performance of their loan portfolios to ensure that their credit officers do not lower credit standards. Likewise, for banks located in an emerging economy, investing in human capital and advanced technologies can enable them to respond more effectively to changes in the credit market.

Originality/value

To the best of the authors' knowledge, this study is considered the first to provide empirical evidence for the nonlinear relationship between asset quality and profitability.

Details

International Journal of Managerial Finance, vol. 18 no. 3
Type: Research Article
ISSN: 1743-9132

Keywords

Article
Publication date: 22 June 2021

Sutan Emir Hidayat, Muhammad Rizky Prima Sakti and Raqiya Ali Abdullah Al-Balushi

The purpose of this study is to critically evaluate how conventional and Islamic banks trade off risk, efficiency and financial performance in their business models, to…

Abstract

Purpose

The purpose of this study is to critically evaluate how conventional and Islamic banks trade off risk, efficiency and financial performance in their business models, to investigate how patterns of risk and efficiency vary between conventional and Islamic banks and to critically evaluate how the profitability of conventional and Islamic banks varies following the financial crisis.

Design/methodology/approach

This study uses univariate and multivariate statistical techniques by investigating 12 Islamic banks and 34 conventional banks operating in the Gulf Cooperation Council (GCC) region has been studied over the period 2011–2018.

Findings

The results suggest that Islamic and conventional banks differ not in the levels of efficiency, risk and profitability, but rather in how risk and efficiency influence banks’ financial performance. Islamic banks are found to be less influenced by the adverse effects of credit risk, which is consistent with the risk-sharing nature of Islamic financing. However, the results only hold for return on assets (ROA) and return on equity (ROE) while the net interest margin is observed to be negatively influenced by credit risk. Lower cost-income efficiency is also found to boost ROA and ROE of Islamic banks which could be attributed to a larger share of non-interest revenues due to Sharīʿah-compliance.

Research limitations/implications

From a theoretical point of view, this study helps to understand the risk, efficiency and financial performance of Islamic banks in comparison with conventional banks.

Practical implications

The results of this study can serve bank managers, regulators and shareholders. Policymakers should encourage a more risk-sharing structure of Islamic financing as it brings less adverse effects of credit risk and increases income sustainability for Islamic banks. The present study may help bank managers to improve the financial performance of their firms by controlling risk and efficiency. The study results also have implications for shareholders and depositors of Islamic and conventional banks as they should have a predetermined position about the level of credit risk and efficiency in each banking system.

Originality/value

The foremost contribution is that this is one of the few studies to compare risk, efficiency and financial performance of Islamic and conventional banks in the GCC region. By using the latest data, this paper hopes that the findings will be more relevant than previous studies to the current situation of the banking industry in the region.

Details

Journal of Islamic Accounting and Business Research, vol. 12 no. 4
Type: Research Article
ISSN: 1759-0817

Keywords

Article
Publication date: 1 December 2020

Muneer M. Alshater, M. Kabir Hassan, Ashraf Khan and Irum Saba

Islamic finance is an alternative approach of financial intermediation based on risk-sharing and asset-backed operations, which evolved substantially in recent years in…

Abstract

Purpose

Islamic finance is an alternative approach of financial intermediation based on risk-sharing and asset-backed operations, which evolved substantially in recent years in academic research raising the need for quantitative studies to address the intellectual development and scientific performance of this field. This study aims to provide quantitative statistics and comprehensive review of the key influential and intellectual structure of Islamic finance literature.

Design/methodology/approach

The authors apply the trending and cutting-edge quali-quantitative approach of bibliometric citation analysis. This study reviews 1,940 English studies and review papers published in scientific journals indexed by the Scopus database from 1983 to 2019. RStudio, VOSviewer and Excel’s software are used to analyze the collected data and apply the bibliometric tests.

Findings

The results identify the leading academic authors, journals, institutions and countries with relation to Islamic finance. The authors also propose six main research themes in this field, which are as follows: Islamic finance – fundamentals, growth and legitimacy; customer’s attitude and perception toward Islamic finance; accounting and social reporting of Islamic finance; performance and risk management of Islamic finance; Islamic financial markets; and efficiency of Islamic financial institutions. Lastly, the authors identify research gaps in the existing Islamic finance literature and present 24 future research directions.

Research limitations/implications

The data in this study is confined only to the Scopus database of English papers and reviews. It also considers papers directly related to the field of Islamic finance.

Originality/value

To the best of the authors’ knowledge, this paper is one of the first to address the literature of Islamic finance from a bibliometric aspect. The results of this study along with future research questions will help researchers and practitioners to further explore and stand on firm quantitative bases regarding the scientific development of Islamic finance.

Details

International Journal of Islamic and Middle Eastern Finance and Management, vol. 14 no. 2
Type: Research Article
ISSN: 1753-8394

Keywords

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