Identifying critical links in urban traffic networks: a partial network scan algorithm

Kybernetes ◽  
2016 ◽  
Vol 45 (6) ◽  
pp. 915-930 ◽  
Author(s):  
Xinfeng Yang ◽  
Lanfen Liu ◽  
Yinzhen Li ◽  
Ruichun He
Keyword(s):  
Risk Taking ◽  
Urban Traffic ◽  
Traffic Network ◽  
Traffic Networks ◽  
Content Type ◽  
Impact Area ◽  
Critical Links ◽  
Risk Taking Behavior ◽  
The Impact ◽  
Critical Link

Purpose – Critical links in traffic networks are those who should be better protected because their removal has a significant impact on the whole network. So, the purpose of this paper is to identify the critical links of traffic networks. Design/methodology/approach – This paper proposes the definition of the critical link for an urban traffic network and establishes mathematical model for determining critical link considering the travellers’ heterogeneous risk-taking behavior. Moreover, in order to improve the computational efficiency, the impact area of a link is quantified, a partial network scan algorithm for identifying the critical link based on the impact area is put forward and the efficient paths-based assignment algorithm is adopted. Findings – The proposed algorithm can significantly reduce the search space for determining the most critical links in traffic network. Numerical results also demonstrate that the structure of efficient paths has significant impact on identifying the critical links. Originality/value – This paper identifies the critical links by using a bi-level programming approach and proposes a partial network scan algorithm for identifying critical links accounting for travellers’ heterogeneous risk-taking behavior.

Capital regulation, competition and risk-taking behavior of Indian banks in a simultaneous approach

2018 ◽  
Vol 44 (4) ◽  
pp. 459-477 ◽  
Author(s):  
Santi Gopal Maji ◽  
Preeti Hazarika
Keyword(s):  
Human Capital ◽  
Risk Taking ◽  
Value Added ◽  
Capital Adequacy ◽  
Bank Risk ◽  
Capital Regulation ◽  
Content Type ◽  
Risk Taking Behavior ◽  
Indian Banks ◽  
The Impact

Purpose The purpose of this paper is to investigate the association between capital regulation and risk-taking behavior of Indian banks after incorporating the influence of competition. Further, the study intends to enrich the existing literature by providing empirical evidence on the role of human resources in managing risk along with the influence of other bank specific and macroeconomic variables. Design/methodology/approach Secondary data on 39 listed Indian commercial banks are collected from “Capitaline Plus” corporate data database for a period of 15 years. Capital is measured by capital adequacy ratio as defined by the regulators, and two definitions of risk – credit risk and insolvency risk – are employed. Competition is measured by Herfindahl-Hirschman deposits index, concentration ratio and H-statistic. The value-added intellectual coefficient model is employed to compute human capital efficiency (HCE). Three-stage least squares technique in a simultaneous equation framework is used to estimate the coefficients. Findings The study finds that absolute level of regulatory capital and bank risk are positively associated, although the influence of capital on risk is not statistically significant. The influence of competition on risk is negative for all the models, which supports the “competition stability” view. The impact of human capital on bank risk is also negative for all cases. Practical implications The findings of the study are useful for the decision makers in several ways based on the inverse influence of competition and HCE on bank risk. Further, the observed positive association between capital and risk indicates that the capital regulation is not sufficient to enhance the stability in the banking sector. Originality/value This is the first study in the Indian context that incorporates the competition in the banking industry as an explanatory variable in the extant bank capital and risk relationship.

Intellectual capital, bank stability and risk-taking: evidence from Asian emerging markets

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Tamanna Dalwai ◽  
Dharmendra Singh ◽  
Ananda S.
Keyword(s):  
Emerging Markets ◽  
Intellectual Capital ◽  
Risk Taking ◽  
Bank Risk ◽  
Bank Stability ◽  
Gmm Estimation ◽  
Content Type ◽  
Risk Taking Behavior ◽  
Asian Emerging Markets ◽  
The Impact

Purpose The purpose of this paper is to investigate the impact of intellectual capital (IC) efficiency on the banks’ risk-taking and stability of Asian emerging markets. Design/methodology/approach This study uses a sample of 204 listed banks from 12 Asian emerging countries for the period 2010 to 2019. Data were analyzed using Ordinary Least Squares regression and checked for robustness using system generalized methods moment (GMM) estimation. The dependent variable of bank stability is measured using Z-score-based return on assets (ROA) and return on equity (ROE). The second dependent variable of bank risk is proxied by the standard deviation of ROA, ROE, non-performing loans and loan loss provision. Findings The results suggest the IC efficiency has no association with bank risk-taking and stability. The findings lend no support to the resource-based theory. The robustness of this result is confirmed by the system GMM estimation. However, support is found for the competition fragility view as high market power is associated with low risk-taking. The IC subcomponents, human capital efficiency (HCE) report a negative coefficient for bank risk-taking thereby having no support for the hypothesized relationships. Diversified banks with a higher deposit to total asset ratio resort to high risk-taking. Research limitations/implications IC efficiency does not have an impact on the bank’s risk-taking behavior and stability for Asian banks. Managers can use these findings to improve their IC and boost investor confidence. Regulatory authorities should increase its monitoring function of banks when the GDP decreases as risk-taking behavior are galvanized during this period. Originality/value This research is one of the first to provide empirical evidence of IC efficiency’s relationship with bank stability and bank risk-taking. The implications are useful for policymakers, managers and governing bodies to enhance the banks’ IC efficiency.

Executive compensation and firm risk: an examination across industries

2018 ◽  
Vol 17 (3) ◽  
pp. 359-382 ◽  
Author(s):  
Stephen Abrokwah ◽  
Justin Hanig ◽  
Marc Schaffer
Keyword(s):  
Financial Crisis ◽  
Executive Compensation ◽  
Risk Taking ◽  
Financial Services ◽  
Firm Risk ◽  
Content Type ◽  
Risk Taking Behavior ◽  
The Impact ◽  
The Relationship

Purpose This paper aims to examine the impact of executive compensation on firm risk-taking behavior, measured by the volatility of stock price returns. Specifically, this analysis explores three hypotheses. First, the impact of short-term and long-term executive compensation packages on firm risk is analyzed to assess whether the packages incentivize risk-taking behavior. Second, the authors test how these compensation and risk relationships were impacted by the financial crisis. Third, they expand the analysis to see if the relationship varies across different industries. Design/methodology/approach The econometric approach used to examine the executive compensation and firm risk relationship takes the form of two different panel model specifications. The first model is a pooled model using the panel data of executive compensation, the firm-level control variables and volatility of stock market returns. The second model highlights the differences in the relationship between executive compensation and riskiness of firm behavior across industries. Findings The authors find a significant and robust relationship, showing that during the post-financial crisis period firms tended to use long-term compensation shares to reduce firm risk. They also find that the relationship between various compensation components and firm risk varies across industries. Specifically, the bonus share of compensation negatively impacted firm risk in the financial services industry, while it positively impacted risk in the transportation, communication, gas, electric and services sectors. Additionally, long-term compensation share exhibits an inverse relationship with firm risk in the financial services, manufacturing and trade industries. Originality/value The conclusions of this paper suggest that there is indeed a relationship between executive compensation and firm risk across industries. There was a notable change in the relationship however between firm risk and long-term compensation following the financial crisis, where firms used long-term compensation to reduce firm riskiness. In other words, the financial crisis changed the nature of this relationship across S&P 1500 firms. The last key finding is that there exist differences in risk and compensation relationships across industries, and these differences across industries are highlighted across both bonus share and long-term incentive share variables. This is the first study to explore this relationship across industries.

The Chinese banks’ directors and their risk-taking behavior

2016 ◽  
Vol 10 (2) ◽  
pp. 291-311 ◽  
Author(s):  
Sok-Gee Chan ◽  
Eric H.Y. Koh ◽  
Mohd Zaini Abd Karim
Keyword(s):  
Risk Taking ◽  
Commercial Banks ◽  
Boards Of Directors ◽  
Gender Diversity ◽  
Content Type ◽  
Regulatory Policies ◽  
Wide Range ◽  
Risk Taking Behavior ◽  
The Impact ◽  
Chinese Banking

Purpose The purpose of this paper is to examine the impact of the directors’ socioeconomic backgrounds on the risk-taking behavior of the listed commercial banks in China. Design/methodology/approach The generalized least square method and Arellano and Bover’s (1995) generalized method of moment were used to study the relationship between the directors’ socioeconomic backgrounds and bank risk-taking behavior. The sample studied consists of 16 listed commercial banks in China from 2003 to 2011. Findings It was found that smaller board sizes and higher percentage of independent directors contribute to lower risk-taking. The results also indicate that banks are better off with boards that have gender diversity, government affiliation and higher average age because they enhance problem-solving and market insights facilitate adherence to government or regulatory policies and help reduce the banks’ risks. Research limitations/implications Future studies may consider including non-public-listed banks, pre-2003 data and analyses of the agencies to which the government-affiliated directors are or were attached. Practical implications The paper suggests that corporate governance reform initiatives with closely monitored implementation and phased liberalization contributed toward the banking industry’s resilience. Implications for management include that boards of directors with better quality, sufficient independence, gender diversity, government affiliation and maturity will help reduce risks. Social implications This study may facilitate the decision-making for the bank management and policymakers on the selection of best directors in the Chinese banking sector. The Chinese banking system serves as a plausible role model for consideration, given that four of its banks have now leapfrogged to be among the top ten largest banking institutions after the global financial crisis. Originality/value The study covers a wide range of socioeconomic backgrounds of the board of directors which are crucial in influencing the behavior of the board in banking operations.

The conceptual difference really matters

2019 ◽  
Vol 26 (4) ◽  
pp. 467-489 ◽  
Author(s):  
Ali Alipour
Keyword(s):  
Hierarchical Linear Modeling ◽  
Risk Taking ◽  
Empirical Literature ◽  
Linear Modeling ◽  
Content Type ◽  
Global Database ◽  
The Common ◽  
Causal Impact ◽  
Risk Taking Behavior ◽  
The Impact

Purpose In spite of the common label, uncertainty avoidance (UA) across Hofstede and GLOBE models has been found to be negatively correlated and capture distinct concepts. Nevertheless, the empirical research focusing on the impact of UA on a variety of constructs has strongly neglected this conceptual difference, assuming them equivalent constructs and using one as an alternative for the other, or merely applying one for reasons other than conceptual relevance. Challenging this taken-for-granted assumption, the purpose of this paper is to show that their conceptual difference matters by showing that their causal impact on a given construct is not consistent given their conceptual difference. Design/methodology/approach Hypotheses are tested using hierarchical linear modeling analyses on firms from Compustat Global Database across 44 countries within the time span of 1990–2017. Findings The findings show that the causal effects of Hofstede UA index (UAI) and GLOBE UA society practices on the risk-taking behavior of firms are not consistent. Unlike Hofstede UAI, GLOBE UA (society practices) does not reduce the risk-taking behavior of firms. Originality/value This study is valuable in that it raises awareness on the conceptual differences between UA dimensions across Hofstede vs GLOBE and challenges one of the taken-for-granted assumptions in the empirical literature that the two are equivalent by empirically showing that their impacts on a given construct (i.e. the risk-taking behavior of firms) are not consistent.

Shareholder risk-taking incentives in the presence of contingent capital

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mahmoud Fatouh ◽  
Ayowande A. McCunn
Keyword(s):  
Risk Taking ◽  
Banking System ◽  
Capital Requirements ◽  
Content Type ◽  
Basic Model ◽  
Conversion Rates ◽  
A Minor ◽  
The Impact ◽  
Practical Implications

Purpose This paper aims to present a model of shareholders’ willingness to exert effort to reduce the likelihood of bank distress and the implications of the presence of contingent convertible (CoCo) bonds in the liabilities structure of a bank. Design/methodology/approach This study presents a basic model about the moral hazard surrounding shareholders willingness to exert effort that increases the likelihood of a bank’s success. This study uses a one-shot game and so do not capture the effects of repeated interactions. Findings Consistent with the existing literature, this study shows that the direction of the wealth transfer at the conversion of CoCo bonds determines their impact on shareholder risk-taking incentives. This study also finds that “anytime” CoCos (CoCo bonds trigger-able anytime at the discretion of managers) have a minor advantage over regular CoCo bonds, and that quality of capital requirements can reduce the risk-taking incentives of shareholders. Practical implications This study argues that shareholders can also use manager-specific CoCo bonds to reduce the riskiness of the bank activities. The issuance of such bonds can increase the resilience of individual banks and the whole banking system. Regulators can use restrictions on conversion rates and/or requirements on the quality of capital to address the impact of CoCo bonds issuance on risk-taking incentives. Originality/value To model the risk-taking incentives, authors generally modify the asset processes to introduce components that reflect asymmetric information between CoCo holders and shareholders and/or managers. This paper follows a simpler method similar to that of Holmström and Tirole (1998).

The impact of bank liquidity risk on risk-taking and bank lending: evidence from European bank

2021 ◽  
Vol 6 (2) ◽  
pp. 82-97
Author(s):  
Hongyan Liang ◽  
Zilong Liu
Keyword(s):  
Growth Rate ◽  
Risk Taking ◽  
Fixed Effects ◽  
Liquidity Risk ◽  
Bank Lending ◽  
Basel Iii ◽  
European Banks ◽  
Risk Taking Behavior ◽  
Loan Growth ◽  
The Impact

Objective – This paper uses a sample of annual observations of European banks to examine whether the liquidity risk affects a bank’s risk-taking behavior and its future loan growth. Methodology – A sample of European banks (27 member countries of the European Union plus U.K.) over the period of 2005 to 2019 are used in this study. Liquidity risk is measured by the ratio of liquid assets to total assets. Given the longitudinal nature of the data, the authors use panel regression with bank fixed effects to control for unobserved characteristics that might affect the dependent variable. Findings – The authors find that banks holding more liquid assets take less risk and show a higher subsequent loan growth rate. These results hold for both small and large banks. Novelty – To the authors’ best knowledge, this is one of the earliest studies to carefully examine the effects of liquidity risk on risk-taking behavior and loan growth rate for European banks. Our research suggests that the current Basel III requirement on liquidity ratio can decrease bank’s risking-taking behavior while not necessarily impact their future loan growth. Type of Paper: Empirical JEL Classification: G21, G01, G18. Keywords: Bank Liquidity Risk; Risk-taking Behavior; Loan Growth; Basel III

Financial and social efficiency analysis of Islamic microfinance institutions

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marwa Fersi ◽  
Mouna Bougelbène
Keyword(s):  
Capital Structure ◽  
Credit Risk ◽  
Risk Taking ◽  
Negative Impact ◽  
Microfinance Institutions ◽  
Social Efficiency ◽  
Content Type ◽  
Islamic Microfinance ◽  
The Impact ◽  
The Relationship

PurposeThe purpose of this paper was to investigate the impact of credit risk-taking on financial and social efficiency and examine the relationship between credit risk, capital structure and efficiency in the context of Islamic microfinance institutions (MFIs) compared to their conventional counterparts.Design/methodology/approachThe stochastic frontier approach was used to estimate the financial and social efficiency scores, in a first step. In a second step, the impact of risk-taking on efficiency was evaluated. The authors also took into account the moderating role of capital structure in this effect using the fixed and random effects generalized least squares (GLS) with a first-order autoregressive disturbance. The used dataset covers 326 conventional MFIs and 57 Islamic MFIs in six different regions of the world over the period of 2005–2015.FindingsThe overall average efficiency scores are less than 50%, where CMFIs could have produced their outputs using 48% of their actual inputs. IMFIs record the lowest financial (cost) efficiency that is equal to 28% on average. The estimation results also reveal a negative impact of nonperforming loan on financial and social efficiency. Finally, the moderating effect of leverage funding on the relationship between credit risk-taking and financial efficiency was confirmed in CMFIs. However, leverage seems to moderate the effect of risk-taking behavior on social efficiency for IMFIs.Originality/valueThis paper makes an initial attempt to evaluate the effect of risk-taking decision and its implication on efficiency and MFIs' sustainability. Besides, it takes into consideration the role played by the mode of governance through the ownership structure. In addition, this research study sheds light on the importance of the financial support for the development and sustainability of these institutions, which in return, contributes to a sustainable economic development.

The influence of culture in entrepreneurs’ opportunity exploitation decision in Tanzania

2019 ◽  
Vol 11 (1) ◽  
pp. 22-43 ◽  
Author(s):  
Jia Liu ◽  
Frida Thomas Pacho ◽  
Wang Xuhui
Keyword(s):  
Risk Taking ◽  
Power Distance ◽  
Uncertainty Avoidance ◽  
Formal Institutions ◽  
Entrepreneurial Opportunity ◽  
Content Type ◽  
Opportunity Exploitation ◽  
Empirical Results ◽  
Two Cities ◽  
Risk Taking Behavior

Purpose The purpose of this paper is to empirically explore the impact of culture (using individualism, power distance and uncertainty avoidance) on entrepreneurial risk taking behavior which leads to the opportunity exploitation decision. Moreover, it also uses risk taking behavior of entrepreneurial as the mediation variable between culture and opportunity exploitations decisions. Design/methodology/approach The study took place in Tanzania, which is allocated in East Africa and is one of under researched countries. In total, 140 entrepreneurs who own venture of 5-99 employees were able to be interviewed using a survey questionnaire. In this study, structural equation modeling (SEM) was used to examine the direct and indirect relationship of culture in entrepreneurial opportunity exploitation decisions. Findings After hypothesis testing, the empirical results showed that Tanzania’s culture has an impact on entrepreneurial risk taking behavior, which influences entrepreneurial opportunity exploitation decision. It also showed culture through individualism and uncertainty avoidance measurements affect entrepreneurial opportunity exploitation decisions. The empirical results on power distance were insignificant. Research limitations/implications This study is a wake-up call to policy makers and formal institutions such as government authorities, education institutions and religion institutions. Thus, culture has an ability to influence the behavior of entrepreneurs and so the performance of ventures if it is consistent and well structured. Therefore it should be not taken for granted. Data for our study are based on only two cities and therefore the results should not be generalized as the whole country’s inference. Generalizability is questioned because the data are from only two cities in Tanzania and therefore future research should include more cities to be able to validate the generalizability. Practical implications This study is a wake-up call to policymakers and formal institutions such as government authorities, education institutions and religion institutions. Thus culture has an ability to influence the behavior of entrepreneurs and so the performance of ventures if it is consistent and well structured. Therefore it should be not taken for granted. Data for our study are based on only two cities and therefore the results should not be generalized as the whole country’s inference. Social implications In the country which has well-structured culture, influence the behavior of entrepreneurs to exploit opportunities. Originality/value This is the first empirical study to use SEM for exploring the culture of individualism, power distance and uncertainty avoidance impact on entrepreneurial opportunity exploitation in Tanzania.

Corporate governance mechanisms and R&D intensity in OECD courtiers

2020 ◽  
Vol 20 (5) ◽  
pp. 863-885
Author(s):  
Aws AlHares
Keyword(s):  
Corporate Governance ◽  
Risk Taking ◽  
Oecd Countries ◽  
Least Square ◽  
European Countries ◽  
Board Structure ◽  
Governance Mechanisms ◽  
Content Type ◽  
Anglo American ◽  
The Impact

Purpose This study aims to investigate the impact of ownership structure and board structure on risk-taking as measured by research and development (R&D) Intensity in OECD countries. Design/methodology/approach A panel data of 300 companies from Anglo American and European countries between 2010 and 2016 were used. The ordinary least square multiple regression analysis procedure is used to examine the relationships. The findings are robust to alternative measures and endogeneities. Findings The results show that institutional ownership, board size, independent directors and board diversity are negatively related to risk-taking, with greater significance among Anglo American countries than among Continental European countries. In contrast, the results show that director ownership is statistically insignificant. Originality/value This study extends and contributes to the extant corporate governance (CG) literature, by offering new evidence on the effect of ownership and board structure on risk-taking between two different traditions. The findings will help regulators and policy-makers in the OECD countries in evaluating the adequacy of the current CG reforms to prevent management misconduct and scandals. These findings are relevant for companies aiming to adopt the most suitable governance mechanisms to pursue their R&D objectives and for policymakers interested in promoting R&D investment.

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