Purpose

This study aims to analyze the moderating role of capital on the relationship between loan growth and credit risk for Islamic banks in the post-crisis era.

Design/methodology/approach

The study used annual data of 217 Islamic banks from 38 countries and ranges from 2010–2019. The study applies a two-step system GMM method for hypotheses testing about the moderating role of bank capital on the relationship between loan growth and credit risk in Islamic banks.

Findings

The findings showed that an increase in loan growth increases the credit risk of Islamic banks, as evidenced by loan loss provisions, loan loss reserves and nonperforming loans. The results indicate that capital positively moderates the relationship between loan growth and credit risk in Islamic banking. The positive relationship between bank capital and risk-taking is in line with the “regulatory hypothesis” in banking. The findings predict lower impacts of capital on the relationship between loan growth and credit risk in the South Asian region than MENA, Africa, South, East and Central Asia regions. However, the impact of capital is higher for larger Islamic banks than medium and smaller ones.

Practical implications

The findings of the study add value to the current debate on the role of bank capital to reduce risk-taking in Islamic banks. The study's findings have implications for policymakers, managers, especially in Islamic banking, for improving the Islamic financial system by managing the role of capital, loan growth and credit risk.

Originality/value

This is the first study to explore the moderating role of bank capital on the relationship between loan growth and credit risk in the post-crisis era, especially in Islamic banking. This is the first study in the Islamic banking context, which is providing empirical evidence for the impact of loan growth on the back looking and forward-looking proxies of credit risk under the moderating role of bank capitalization in the post-crisis era. This is the first study, which providing findings based on regions and size to compare the differences in Islamic banks for the impact of loan growth on credit risk under the moderating role of capitalization.

中文翻译：

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伊斯兰银行贷款增长、信用风险和银行资本的经济学

目的

本研究旨在分析后危机时代资本对伊斯兰银行贷款增长与信用风险之间关系的调节作用。

设计/方法/方法

该研究使用了 2010-2019 年来自 38 个国家的 217 家伊斯兰银行的年度数据。该研究采用两步系统 GMM 方法来检验银行资本对伊斯兰银行贷款增长与信用风险之间关系的调节作用的假设。

发现

调查结果表明，贷款增长的增加增加了伊斯兰银行的信用风险，贷款损失准备金、贷款损失准备金和不良贷款证明了这一点。结果表明，资本正向调节伊斯兰银行业贷款增长与信用风险之间的关系。银行资本与风险承担之间的正相关关系符合银行业的“监管假设”。研究结果预测，与中东和北非、非洲、南亚、东亚和中亚地区相比，资本对南亚地区贷款增长与信用风险之间关系的影响较小。然而，资本对大型伊斯兰银行的影响要高于中小型银行。

实际影响

该研究的结果为当前关于银行资本在减少伊斯兰银行风险承担方面的作用的辩论增添了价值。该研究的发现对政策制定者、管理者，尤其是伊斯兰银行业的管理者，通过管理资本、贷款增长和信用风险的作用来改善伊斯兰金融体系具有重要意义。

原创性/价值

这是第一项探讨后危机时代银行资本对贷款增长与信用风险之间关系的调节作用的研究，尤其是在伊斯兰银行业。这是伊斯兰银行业背景下的第一项研究，它为在后危机时代银行资本化的调节作用下贷款增长对信用风险的后视和前瞻代理的影响提供了经验证据。这是第一项研究，根据地区和规模提供调查结果，以比较伊斯兰银行在资本化调节作用下贷款增长对信用风险的影响的差异。