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1 – 10 of 63
Article
Publication date: 20 November 2019

Hamed Ojaghi, Mahdi Mohammadi and Hamid Reza Yazdani

The purpose of this study set out to introduce an alternative framework for explaining the formation of the innovation ecosystem based on the systematic literature review (SLR…

2039

Abstract

Purpose

The purpose of this study set out to introduce an alternative framework for explaining the formation of the innovation ecosystem based on the systematic literature review (SLR) and ecosystemic approach.

Design/methodology/approach

This paper is an SLR of studies from the year 2008-2018 that investigating startups’ innovation. SLR approach being used exploration, interpretation and communication method, which composed of seven steps as follows exploring topics, searching, organizing, evaluating and expanding, integrating and communicating. The output of this process is 63 documents that applied to synthesize the formation framework.

Findings

The systematic review of literature has shown that researchers in recent years have considered some entities such as incubators, financials suppliers, accelerators, universities and companies in relation to the startup innovations, which are described in this paper as key actors. The study of the relationship between these actors in the documents led to the identification of interactional necessities, including structures, infrastructures and networks. Finally, the processes studied in the literature were classified into three types of mechanisms, namely, the genesis, growth and development of startups innovations.

Research limitations/implications

The SLR approach is subject to limitations because some poor explanations amongst previous researchers may be repeated and reinforced. Also, in the protocol adopted in this paper, documents are limited in English.

Practical implications

The introduced frammework can be useful in identifying and understanding the requirements of startups and creating effective policies for their innovation development.

Originality/value

This paper reviews, summarizes and integrates the growing and scattered literature of the innovation ecosystem of the startups and delivers new facts for the future development of this field.

Details

Journal of Science and Technology Policy Management, vol. 10 no. 5
Type: Research Article
ISSN: 2053-4620

Keywords

Article
Publication date: 10 September 2018

Mahdi Salehi, Mahmoud Lari DashtBayaz and Samaneh Mohammadi Moghadam

The purpose of this paper is to assess the relationship between some management features (management capability, management entrenchment, agency costs and overconfidence) and the…

Abstract

Purpose

The purpose of this paper is to assess the relationship between some management features (management capability, management entrenchment, agency costs and overconfidence) and the innovation of companies listed on the Tehran Stock Exchange.

Design/methodology/approach

The study carried out during 2009–2015. A total of 125 companies were selected from eight industries as the sample of study using the method of systematic elimination. A descriptive-correlational design was used in this study and panel data regression models were employed for developing the relationship between research variables.

Findings

The obtained results indicated that managerial ability could foster innovation, while managerial entrenchment could stifle innovation and agency costs and overconfidence have no effect on innovation.

Originality/value

The current study is almost the first project which focuses on the management characteristics and firm innovation in developing countries.

Details

International Journal of Productivity and Performance Management, vol. 67 no. 7
Type: Research Article
ISSN: 1741-0401

Keywords

Book part
Publication date: 4 April 2024

Ramin Rostamkhani and Thurasamy Ramayah

This chapter of the book seeks to use famous mathematical functions (statistical distribution functions) in evaluating and analyzing supply chain network data related to supply…

Abstract

This chapter of the book seeks to use famous mathematical functions (statistical distribution functions) in evaluating and analyzing supply chain network data related to supply chain management (SCM) elements in organizations. In other words, the main purpose of this chapter is to find the best-fitted statistical distribution functions for SCM data. Explaining how to best fit the statistical distribution function along with the explanation of all possible aspects of a function for selected components of SCM from this chapter will make a significant attraction for production and services experts who will lead their organization to the path of competitive excellence. The main core of the chapter is the reliability values related to the reliability function calculated by the relevant chart and extracting other information based on other aspects of statistical distribution functions such as probability density, cumulative distribution, and failure function. This chapter of the book will turn readers into professional users of statistical distribution functions in mathematics for analyzing supply chain element data.

Details

The Integrated Application of Effective Approaches in Supply Chain Networks
Type: Book
ISBN: 978-1-83549-631-2

Keywords

Article
Publication date: 31 January 2020

Sayyed Ali Akbar Shahriari, Mohammad Mohammadi and Mahdi Raoofat

The purpose of this study is to propose a control scheme based on state estimation algorithm to improve zero or low-voltage ride-through capability of permanent magnet synchronous…

Abstract

Purpose

The purpose of this study is to propose a control scheme based on state estimation algorithm to improve zero or low-voltage ride-through capability of permanent magnet synchronous generator (PMSG) wind turbine.

Design/methodology/approach

Based on the updated grid codes, during and after faults, it is necessary to ensure wind energy generation in the network. PMSG is a type of wind energy technology that is growing rapidly in the network. The control scheme based on extended Kalman filter (EKF) is proposed to improve the low voltage ride-through (LVRT) capability of the PMSG. In the control scheme, because the state estimation algorithm is applied, the requirement of DC link voltage measurement device and generator speed sensor is removed. Furthermore, by applying this technique, the extent of possible noise on measurement tools is reduced.

Findings

In the proposed control scheme, zero or low-voltage ride-through capability of PMSG is enhanced. Furthermore, the requirement of DC link voltage measurement device and generator speed sensor is removed and the amount of possible noise on the measurement tools is minimized. To evaluate the ability of the proposed method, four different cases, including short and long duration short circuit fault close to PMSG in the presence and absence of measurement noise are studied. The results confirm the superiority of the proposed method.

Originality/value

This study introduces EKF to enhance LVRT capability of a PMSG wind turbine.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 39 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 6 November 2017

Mahdi Salehi and Nahid Mohammadi

Investors’ decision-making is based on quantitative and rational analyses, and some other factors deriving from the market expectations are also contribute significantly on the…

Abstract

Purpose

Investors’ decision-making is based on quantitative and rational analyses, and some other factors deriving from the market expectations are also contribute significantly on the shareholders’ response to market interactions. The present study aims to discover whether emotional intelligence and thinking style have a significant effect on the quality of investors’ decision-making.

Design/methodology/approach

To gather data, a questionnaire was designed and developed and distributed among the participants during the first half of 2015. Moreover, the SAS software and the log-linear method was used to test the hypotheses.

Findings

The results show that emotional intelligence, thinking style and quality of decision-making are not dependent and emotional intelligence and thinking style are not interdependent on each other.

Originality/value

The current study used a unique model to test the hypotheses, and the results may be different from those of previous studies.

Details

Qualitative Research in Financial Markets, vol. 9 no. 4
Type: Research Article
ISSN: 1755-4179

Keywords

Article
Publication date: 22 July 2021

Tamanna Dalwai, Syeeda Shafiya Mohammadi, Gaitri Chugh and Mahdi Salehi

This study examines the impact of intellectual capital efficiency and corporate governance mechanisms on the annual report readability of Oman's financial sector companies.

1498

Abstract

Purpose

This study examines the impact of intellectual capital efficiency and corporate governance mechanisms on the annual report readability of Oman's financial sector companies.

Design/methodology/approach

The study uses a sample of 150 firm-year observations of listed financial sector companies in the Muscat Securities Market, Oman, from 2014 to 2018. Flesch Reading ease and Flesch Kinkaid Index are used as proxies for annual report readability. As part of sensitivity analysis, the study also uses the natural logarithm of annual report pages as alternative readability measures. The investigation is conducted using random effects regression analysis and supported with system GMM estimation for robustness.

Findings

The findings of this study demonstrate a decrease in intellectual capital efficiency associated with better readability of annual reports for the financial sector firms. Alternatively, banks report a positive association of intellectual capital efficiency with the Flesch Reading ease score of the annual report. The structural capital and capital employed efficiency are also found to be negatively associated with annual report readability. Corporate governance mechanisms such as dispersed ownership and audit committee size also result in easy-to-read annual reports that support agency theory.

Research limitations/implications

The research was conducted for financial firms of Oman, and thereby the findings can be generalized to the financial sector of countries with similar settings, such as the Gulf Cooperation Council (GCC) region.

Practical implications

The policy implications arising from this study suggest a strengthening of the intellectual capital efficiency and corporate governance mechanisms to improve the readability of the firms and thereby increase investor confidence.

Originality/value

This paper's uniqueness is in the model used to investigate the impact of intellectual capital efficiency and corporate governance mechanisms on the annual report readability of an emerging market.

Details

International Journal of Emerging Markets, vol. 18 no. 9
Type: Research Article
ISSN: 1746-8809

Keywords

Article
Publication date: 16 June 2021

Hojat Mohammadi, Mahdi Salehi, Meysam Arabzadeh and Hassan Ghodrati

This paper aims to assess auditor narcissism’s effect on audit market competition (auditor concentration, clients’ concentration and competitive pressure).

Abstract

Purpose

This paper aims to assess auditor narcissism’s effect on audit market competition (auditor concentration, clients’ concentration and competitive pressure).

Design/methodology/approach

This paper’s method is descriptive-correlational based on published information from listed firms on the Tehran Stock Exchange from 2012 to 2018 using a sample of 188 firms (1,310 observations). The method used for hypothesis testing is linear regression using panel data.

Findings

The results show a negative and significant relationship between auditor narcissism and audit market competition and its indices, including auditor concentration, clients’ concentration and competitive pressure. Moreover, a positive and significant relationship was observed between audit quality and audit market competition and its indices, including auditor concentration, client concentration and competitive pressure.

Originality/value

To analyzes competition indices in the audit market (auditor concentration, clients’ concentration and competitive pressure). The variable is assessed once more using the exploratory factor analysis of the so-called three variables single variable, named audit market competition. So the central question of the study is investigated within a broader sense. Moreover, as the present study is carried out in the emergent financial markets with extremely competitive audit markets to figure out the effect of auditors’ intrinsic characteristics on such markets’ competitiveness, it can provide useful information in this field.

Details

Management Research Review, vol. 44 no. 11
Type: Research Article
ISSN: 2040-8269

Keywords

Article
Publication date: 15 July 2019

Mahdi Salehi and Samaneh Mohammadi Moghadam

This study aims to investigate the relationship between management characteristics including management capability, management entrenchment, agency costs and overconfidence and…

1128

Abstract

Purpose

This study aims to investigate the relationship between management characteristics including management capability, management entrenchment, agency costs and overconfidence and firm performance in companies listed on the Tehran Stock Exchange market.

Design/methodology/approach

The research population includes 125 companies after applying systematic elimination sampling method during 2010-2016. The primary measure for companies’ performance is return on assets and Demerjian et al. (2012a) model is used to measure managerial characteristics.

Findings

The results indicated that two management characteristics, namely, management capability and overconfidence are positively associated with firm performance and improve the level of performance. Agency costs did not have any significant effect on firm performance and management entrenchment leads to deterioration in firm performance.

Originality/value

The paper focuses on managerial characteristics and firm performance, which the results may very helpful to companies and investors to hiring managers with specific characteristics. Moreover, the results may give strength to further studies.

Details

Competitiveness Review: An International Business Journal , vol. 29 no. 4
Type: Research Article
ISSN: 1059-5422

Keywords

Open Access
Article
Publication date: 19 September 2018

Mohammad Mohammadi, Behzad Kardan and Mahdi Salehi

The purpose of this paper is to investigate the relationship between cash holdings, investment opportunities and financial constraint with audit fees in Iran.

6225

Abstract

Purpose

The purpose of this paper is to investigate the relationship between cash holdings, investment opportunities and financial constraint with audit fees in Iran.

Design/methodology/approach

In order to collect data, all manufacturing companies listed on the Tehran Stock Exchange are used to test the hypotheses during 2008–2015. Panel data and combined data regression model were used for data analysis. Tests were performed using R statistical software.

Findings

The results obtained from the statistical analysis of research hypotheses indicated that there is a significant relationship between cash holdings and audit fees. Furthermore, the relationship between cash holdings, financial constraints and audit fees was significant. In addition, there was no significant relationship between cash holdings, investment opportunities and audit fees.

Originality/value

The current study employed a unique topic in terms of a developing country, and the results may give strength to other developing nations.

Details

Asian Journal of Accounting Research, vol. 3 no. 1
Type: Research Article
ISSN: 2443-4175

Keywords

Article
Publication date: 4 June 2020

Mahdi Salehi, Mahmoud Lari Dasht Bayaz, Shaban Mohammadi, Mohammad Seddigh Adibian and Seyed Hamed Fahimifard

The main objective of the present study is to assess the potential impact of readability of financial statement notes on the auditor's report lag, audit fees and going concern…

2094

Abstract

Purpose

The main objective of the present study is to assess the potential impact of readability of financial statement notes on the auditor's report lag, audit fees and going concern opinion (GCO).

Design/methodology/approach

The statistical population of this study includes all listed firms on the Tehran Stock Exchange (TSE) for the period of 2012–2017. The systematic elimination method is used for sampling and multiple regression and EViews software are used for testing the hypothesis models.

Findings

The obtained results show that there is a significant and positive relationship between audit report lags and readability of financial statements. Moreover, it is also revealed that readability of financial statements is positively associated with audit fees. Furthermore, the findings suggest a negative correlation between readability indexes and issuing GCOs, denoting hard-to-read statements is considered as a risk factor by auditors. Finally, the observations of our robustness tests suggest that the association between audit report lag and readability of financial statements is robust.

Originality/value

This is the first conducted investigation concerning auditor's response to the readability of financial statement notes in TSE. The outcome of current paper may pave the way for revising and developing Iranian accounting standards in order to give a fairer and clearer picture of financial reports.

1 – 10 of 63