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Article
Publication date: 18 September 2011

Aslihan E. Bozcuk, Sinan Aslan and S. Burak Arzova

This paper aims to investigate internet financial reporting following major regulatory changes in Turkey. Although these regulations only cover publicly listed firms, large…

1200

Abstract

Purpose

This paper aims to investigate internet financial reporting following major regulatory changes in Turkey. Although these regulations only cover publicly listed firms, large unlisted firms also use the internet to disseminate financial information.

Design/methodology/approach

The study surveys the top 500 Turkish industrial firms on the “Istanbul Chamber of Industry 500” (ICI500) to determine whether the regulatory changes led to significant changes in their financial reporting on the internet.

Findings

The percentage of firms providing financial disclosures on the internet doubled from 2003 to 2010. However, problems remain, including the extremely low level of voluntary disclosures (six percent of firms) and the failure of listed firms to provide information other than mandatory disclosures such as financial summaries and ratios. The study finds increases in voluntary disclosures of share price performance and management reports, providing support for the signaling theory.

Originality/value

This study investigates listed as well as unlisted firms and specifically addresses the consequences of regulatory intervention.

Details

EuroMed Journal of Business, vol. 6 no. 3
Type: Research Article
ISSN: 1450-2194

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Article
Publication date: 29 March 2023

Sabri Burak Arzova, Ayben Koy and Bertaç Şakir Şahin

This study investigates the effect of unproven energy reserve news on the volatility of energy firms' stocks. Thus, investors' perception of unproven energy reserves is revealed…

164

Abstract

Purpose

This study investigates the effect of unproven energy reserve news on the volatility of energy firms' stocks. Thus, investors' perception of unproven energy reserves is revealed. Additionally, the study aims to determine whether the effect of the news changes according to time and volatility level.

Design/methodology/approach

The general autoregressive conditional heteroskedasticity (GARCH) and exponential generalized autoregressive conditional heteroskedasticity (EGARCH) models consist of the energy reserve exploration news in Turkey for the period 2009–2022 and the volatility of 14 energy stocks.

Findings

The results indicate energy exploration news's negative and significant effect on volatility. According to empirical results, energy stock volatility is most affected in the first ten days. Besides, the results show that the significant models of energy reserve news in low-volatility stocks are proportionally higher than in high-volatility stocks.

Research limitations/implications

Only unproved reserve news is included in the analysis, as sufficient confirmed reserves could not be reached during the sampling period. Further studies can compare proven and unproved reserve news effects. Additionally, a similar analysis can be conducted between Turkey and another country with a similar socio-economic character to examine different investor behaviors.

Practical implications

This research includes indications on managing investors' reactions to unproven energy reserve news.

Originality/value

This study contributes to the literature by analyzing unproven reserves. Contrary to previous studies, examining stock volatility also makes the study unique.

Details

Review of Behavioral Finance, vol. 16 no. 1
Type: Research Article
ISSN: 1940-5979

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Article
Publication date: 1 November 2023

Sabri Burak Arzova and Bertaç Şakir Şahin

The purposes of this study are to contribute to the limited green growth (GG) literature in emerging markets, to analyze GG from a financial economy perspective and to determine…

429

Abstract

Purpose

The purposes of this study are to contribute to the limited green growth (GG) literature in emerging markets, to analyze GG from a financial economy perspective and to determine the contribution of financial development and innovation to GG in Brazil, Russian Federation, India, China and South Africa and Türkiye (BRICS-T). BRICS-T countries significantly impact the world population, international politics, energy resources and economy. In addition, BRICS-T countries are one of the leading countries in the world with their sustainability efforts. Investigating the GG model in these countries may contribute to structuring emerging economies around the principles of GG and advancing global green transformation efforts.

Design/methodology/approach

The authors applied panel data analysis from 2001 to 2019. GG is economic growth free from environmental depletion in the model. National income, personnel expenditure and foreign direct investments are macroeconomic variables. These variables measure economic development and promote economic and social progress, which is essential for GG. Capital accumulation and innovation are essential tools in GG transformation. Therefore, financial development and patent applications represent the moderating variables. The authors estimate the fixed effect model with Parks-Kmenta robust.

Findings

Empirical results show that national income growth and foreign direct investments positively affect GG. Personnel expenditure negatively affects GG. On the contrary, financial development and patent growth have little moderating role.

Originality/value

This study contributes to the literature on creating a GG model in emerging countries. The study is original in its model and sample.

Details

Management of Environmental Quality: An International Journal, vol. 35 no. 3
Type: Research Article
ISSN: 1477-7835

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Article
Publication date: 6 April 2023

Sabri Burak Arzova and Bertac Sakir Sahin

The present study investigates the impact of financial soundness variables on bank performance in emerging countries.

422

Abstract

Purpose

The present study investigates the impact of financial soundness variables on bank performance in emerging countries.

Design/methodology/approach

This study uses macro-level panel data from 17 countries from 2011 to 2020. The analysis adopts six models. While four models include bank profitability, the dependent variable of the other models is Bank Z Scores. Regulatory Capital to Risk-Weighted Assets, Liquid Assets to Total Assets, Non-Performing Loans to Total Gross Loans and Non-Interest Expenses to Gross Income are proxies of financial soundness variables.

Findings

The authors estimate fixed and random effects models with the Arellano, Froot and Rogers methods. Empirical results show that Non-Performing Loans to Total Gross Loans harm ROA and ROE. Regulatory Capital to Risk-Weighted Assets negatively affects ROE. Non-Interest Expenses to Gross Income on Bank Z Scores have a significant and negative effect. Moreover, Inflation, Foreign Direct Investment and GDP are macroeconomic variables that increase bank profitability.

Originality/value

This study contributes to the literature in different aspects. The first is the model of the study. The authors contribute to the literature regarding the variables used to measure financial soundness. Secondly, emerging countries are samples in the study. A significant part of the studies on financial soundness has focused on developed countries. Finally, the authors analyze the macro-level data. Bank soundness studies mainly investigate country-level variables. Macro-level analysis may provide an advantage in combating global financial crises.

Details

Kybernetes, vol. 53 no. 8
Type: Research Article
ISSN: 0368-492X

Keywords

Available. Content available
Article
Publication date: 3 June 2024

Sabri Burak Arzova, Ayben Koy and Bertaç Şakir Şahin

This study investigates the effect of the day of the week on the volatility of cryptocurrencies. Thus, we reveal investors' perceptions of the day of the week.

297

Abstract

Purpose

This study investigates the effect of the day of the week on the volatility of cryptocurrencies. Thus, we reveal investors' perceptions of the day of the week.

Design/methodology/approach

The EGARCH model consists of the day of the week for 2019–2022 and the volatility of 11 cryptocurrencies.

Findings

Empirical results show that the weekend harms cryptocurrency volatility. Also, there was positive cryptocurrency volatility at the beginning of the week. Our findings show that weekdays and weekends significantly impact cryptocurrency volatility. Besides, cryptocurrency investors are sensitive to market movements, disclosures, and regulations during the week. Holiday mode and cognitive shortcuts may cause cryptocurrency traders to remain passive on weekends.

Research limitations/implications

This study has some limitations. We include 11 cryptocurrencies in the analysis by limiting cryptocurrencies according to market capitalizations. Further studies may analyze a larger sample. In addition, further studies may examine the moderator and mediator effects of other financial instruments.

Practical implications

The empirical results have research, social and practical conclusions from different aspects. Our analysis may contribute to determining trading strategies, risk management, market efficiency, regulatory oversight, and investment decisions in the cryptocurrency market.

Originality/value

The calendar effect in financial markets has extensive literature. However, cryptocurrencies' weekday and weekend effect needs to be adequately analyzed. Besides, studies analyzing cryptocurrency volatility are limited. We contribute to the literature by investigating the impact of days of the week on cryptocurrency volatility with a large sample and current data.

Details

International Journal of Quality & Reliability Management, vol. 42 no. 1
Type: Research Article
ISSN: 0265-671X

Keywords

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Article
Publication date: 30 March 2022

Ahmed Hassan Ahmed, Mohamed Elmaghrabi, Bruce Burton and Theresa Dunne

The purpose of this study is to provide a detailed descriptive account and analysis of corporate internet reporting (CIR) practices among non-financial companies listed on the…

302

Abstract

Purpose

The purpose of this study is to provide a detailed descriptive account and analysis of corporate internet reporting (CIR) practices among non-financial companies listed on the Egyptian Exchange (EGX) at two points in time – December 2010 (pre) and December 2013 (peri) political and social unrest in Egypt.

Design/methodology/approach

The study developed a disclosure index to determine the extent of CIR practices among all non-financial companies listed on the EGX in December 2010 and December 2013. The study uses ordinary least squares (OLS) regressions and isometric log-ratio transformations for compositional independent variables to empirically examine the factors affecting CIR in Egypt using a modern institutional theory lens.

Findings

The findings of this investigation suggest that listed companies in Egypt have started embracing the power of the internet as a disclosure channel, but the extent of these practices increased significantly over the investigated period, with great variations evident among the sampled companies in this regard. Such variations were chiefly dependent on the changing institutional actors over the two time frames. Additionally, the findings show that the time factor is particularly important for a given institutional field to induce a sufficient diffusion of corporate practices, especially in periods with drastic institutional change.

Practical implications

The evidence presented reflects the voluntary nature of CIR practices and the absence of a reinforced regulatory framework for organizing and monitoring such practices, with companies having discretion in terms of the amount and type of information disclosed via their websites. The results should, therefore, provide useful guidelines for regulators and standard-setters in identifying best practices, which, in turn, should allow CIR practices to become more consistent, making them easier to monitor and govern.

Originality/value

To the best of the authors’ knowledge, this is the first study that examines CIR practices at two points in time using a comprehensive disclosure index and a modern institutional theory lens.

Details

International Journal of Organizational Analysis, vol. 31 no. 6
Type: Research Article
ISSN: 1934-8835

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