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1 – 10 of 15Christian Acuña-Opazo and Alejandro Álvarez-Marín
La presente investigación examina la existencia de memoria de largo plazo por medio del cálculo del coeficiente de Hurst y Hurst ajustado, y del análisis de características de…
Abstract
Propósito
La presente investigación examina la existencia de memoria de largo plazo por medio del cálculo del coeficiente de Hurst y Hurst ajustado, y del análisis de características de estructuras caóticas en la serie del mercado bursátil de Chile, específicamente a través del Índice de Precios Selectivo de Acciones.
Diseño/metodología/enfoque
Se desarrolló un breve análisis del mercado, según la metodología de Box y Jenkings. La validez de los resultados se realizó por medio de la prueba propuesta por Brock, Dechert y Scheinkman. En segundo lugar, se procedió a analizar la dinámica y patrones del índice y de su rendimiento, para observar si existía evidencia de memoria de largo plazo.
Hallazgos
Los resultados demuestran la presencia de esta memoria en el mercado bursátil chileno, determinado a través del índice accionario en dos escalas, diaria y trimestral, lo que además corrobora resultados obtenidos por otros autores, confirmando el uso de la metodología de Rango Re-escaldo para la identificación y determinación de memoria de largo plazo en una serie temporal.
Originalidad/valor
Este estudio permitirá a futuros investigadores realizar análisis similares en otros mercados, aportando un nuevo enfoque al analizar la memoria de la largo plazo y los factores que inciden en ella.
Palabras clave
Exponente de Hurst, Índice bursátil, Mercados eficientes, Mercados fractales
Tipo de artículo
Artículo de investigación
Purpose
This research examined the existence of long-term memory by calculating the coefficient of Hurst and Hurst set, and the analysis of characteristics of chaotic structures in the series of stock market of Chile, specifically through the Selective Price Index Shares.
Design/methodology/approach
A brief analysis of the market was developed, according to Box and Jenkins methodology. The validity of the results was performed by means of the test proposed by Brock, Dechert and Scheinkman. Secondly, we proceeded to analyze the dynamics and patterns of the index and its performance, to see if there was evidence of long-term memory.
Findings
The results demonstrate the presence of long-term memory in the Chilean stock market, determined by stock index in two scales, daily and quarterly, which also corroborates results obtained by other authors, confirming the use of the methodology Range Re-scalded for the identification and determination of long-term memory in a time series.
Originality/value
This study will allow future researchers to perform similar analyzes in other markets, providing a new approach when analyzing the long-term memory and the factors that affect it.
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Keywords
Georg Hauer, Nadine Naumann and Patrick Harte
The purpose of this study is to investigate the influence of digital transformation on the intersection of marketing and sales departments.
Abstract
Purpose
The purpose of this study is to investigate the influence of digital transformation on the intersection of marketing and sales departments.
Design/methodology/approach
This area has received little attention in academic literature while considerable amount of research exists surrounding the marketing and sales integration, the influence of the trend of digital transformation on both departments and how it affects their collaboration is not investigated in-depth and is therefore studied by qualitative research via semi-structured interviews in six German organizations.
Findings
By considering the findings the collaboration between the marketing and sales departments in German organizations is perceived as good. However, generation-related conflicts occur due to different demographic structures of employees. The study provides evidence that the digital transformation affects the marketing and sales integration and thus, the overall organizational performance.
Originality/value
Moreover, it is crucial that organizations face the challenges that occur in terms of interdepartmental relationships and be aware of the huge potentials which arise due to digital transformation to improve the marketing and sales collaboration.
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Hüseyin Emre Ilgın, Markku Karjalainen and Sofie Pelsmakers
This study examined data from 13 international tall residential timber building case studies to increase our understanding of the emerging global trends.
Abstract
Purpose
This study examined data from 13 international tall residential timber building case studies to increase our understanding of the emerging global trends.
Design/methodology/approach
Data were collected through literature surveys and case studies to examine the architectural, structural and constructional points of view to contribute to knowledge about the increasing high-rise timber constructions globally.
Findings
The main findings of this study indicated that: (1) central cores were the most preferred type 10 of core arrangements; (2) frequent use of prismatic forms with rectilinear plans and regular extrusions were identified; (3) the floor-to-floor heights range between 2.81 and 3.30 m with an average of 3 m; (4) the dominance of massive timber use over hybrid construction was observed; (5) the most used structural system was the shear wall system; (6) generally, fire resistance in primary and secondary structural elements exceeded the minimum values specified in the building codes; (7) the reference sound insulation values used for airborne and impact sounds had an average of 50 and 56 dB, respectively.
Originality/value
There is no study in the literature that comprehensively examines the main architectural and structural design considerations of contemporary tall residential timber buildings.
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Keywords
Carlos Larrinaga and Jan Bebbington
The aim of this paper is to provide an account of the period prior to the creation of the Global Reporting Initiative (GRI): a body that was critical to the institutionalization…
Abstract
Purpose
The aim of this paper is to provide an account of the period prior to the creation of the Global Reporting Initiative (GRI): a body that was critical to the institutionalization of sustainability reporting (SR). By examining this “pre-history,” we bring to light the actors, activities and ways of thinking that made SR more likely to be institutionalized once the GRI entrepreneurship came to the fore.
Design/methodology/approach
The paper revisits a time period (the 1990s) that has yet to be formally written about in any depth and traces the early development of what became SR. This material is examined using a constructivist understanding of regulation.
Findings
The authors contend that a convergence of actors and structural conditions were pivotal to the development of SR. Specifically, this paper demonstrates that a combination of actors (such as epistemic communities, carriers, regulators and reporters) as well as the presence of certain conditions (such as the societal context, analogies with financial reporting, environmental reporting and reporting design issues) contributed to the development of SR which was consolidated (as well as extended) in 1999 with the advent of the GRI.
Research limitations/implications
This paper theorizes (through a historical analysis) how SR is sustained by a network of institutional actors and conditions which can assist reflection on future SR development.
Originality/value
This paper brings together empirical material from a time that (sadly) is passing from living memory. The paper also extends the use of a conceptual frame that is starting to influence scholarship in accounting that seeks to understand how norms develop.
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Jesus David Gomez Diaz, Alejandro I. Monterroso, Patricia Ruiz, Lizeth M. Lechuga, Ana Cecilia Conde Álvarez and Carlos Asensio
This study aims to present the climate change effect on soil moisture regimes in Mexico in a global 1.5°C warming scenario.
Abstract
Purpose
This study aims to present the climate change effect on soil moisture regimes in Mexico in a global 1.5°C warming scenario.
Design/methodology/approach
The soil moisture regimes were determined using the Newhall simulation model with the database of mean monthly precipitation and temperature at a scale of 1: 250,000 for the current scenario and with the climate change scenarios associated with a mean global temperature increase of 1.5°C, considering two Representative Concentration Pathways, 4.5 and 8.5 W/m2 and three general models of atmospheric circulation, namely, GFDL, HADGEM and MPI. The different vegetation types of the country were related to the soil moisture regimes for current conditions and for climate change.
Findings
According to the HADGEM and MPI models, almost the entire country is predicted to undergo a considerable increase in soil moisture deficit, and part of the areas of each moisture regime will shift to the next drier regime. The GFDL model also predicts this trend but at smaller proportions.
Originality/value
The changes in soil moisture at the regional scale that reveal the impacts of climate change and indicate where these changes will occur are important elements of the knowledge concerning the vulnerability of soils to climate change. New cartography is available in Mexico.
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Stelvia V. Matos, Martin C. Schleper, Stefan Gold and Jeremy K. Hall
The research is based on a critically analyzed literature review focused on the unanticipated outcomes, trade-offs and tensions of sustainable operations and supply chain…
Abstract
Purpose
The research is based on a critically analyzed literature review focused on the unanticipated outcomes, trade-offs and tensions of sustainable operations and supply chain management (OSCM), including the articles selected for this special issue.
Design/methodology/approach
The authors introduce the key concepts, issues and theoretical foundations of this special issue on “The hidden side of sustainable operations and supply chain management (OSCM): Unanticipated outcomes, trade-offs and tensions”. The authors explore these issues within this context, and how they may hinder the authors' transition to more sustainable practices.
Findings
The authors present an overview of unanticipated outcomes, trade-offs, tensions and influencing factors from the literature, and identify how such problems may emerge. The model addresses these problems by highlighting the crucial effect of the underlying state of knowledge on sustainable OSCM decision-making.
Research limitations/implications
The authors limited the literature review to journals that ranked 2 and above as defined by the Chartered Association of Business Schools Academic Journal Guide. The main implication for research is a call to focus attention on unanticipated outcomes as a starting point rather than only an afterthought. For practitioners, good intentions such as sustainability initiatives need careful consideration for potential unanticipated outcomes.
Originality/value
The study provides the first critical review of unanticipated outcomes, trade-offs and tensions in the sustainable OSCM discourse. While the literature review (including papers in this special issue) significantly contributes toward describing these issues, it is still unclear how such problems emerge. The model developed in this paper addresses this gap by highlighting the crucial effect of the underlying state of knowledge concerned with sustainable OSCM decision-making.
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Giustina Secundo, Pierluigi Rippa and Michele Meoli
This paper analyses whether the entrepreneurship education centres introduced by the Italian Ministry of Higher Education and Research in 2012 (the Italian Contamination Labs …
Abstract
Purpose
This paper analyses whether the entrepreneurship education centres introduced by the Italian Ministry of Higher Education and Research in 2012 (the Italian Contamination Labs – CLabs) are effectively adopting the emergent digital technologies for nurturing their entrepreneurship education activities and dissemination of knowledge contamination practices among university students.
Design/methodology/approach
An in-depth analysis of italian entrepreneurship education centres provides evidence about the direct role played by digital technologies in supporting and enhancing the entrepreneurial processes, as well as on their indirect role in stimulating entrepreneurship activities of nascent student entrepreneurs.
Findings
Findings provide some insights into the strategic role of some categories of digital technologies inside the CLabs. The main results show still a weak use of digital technologies in CLabs except for social media and digital platforms, mainly used for promotion scope and communication of the entrepreneurial outputs achieved by the students.
Research limitations/implications
Limitations of the study consist of the need to expand the study to all the other CLabs belonging to the CLabs Italian Network and to derive a set of “invariance” among the cases in terms of digital technologies support for student entrepreneurship.
Practical implications
New ways of managing entrepreneurship centres will involve a more massive adoption of digital technologies to support and transform some processes realized inside the CLabs, even if the governance of such centres must develop new digital skills.
Originality/value
The originality of the work regards the contribution to the emerging role of digital technologies on the student's entrepreneurship.
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Stefano Ferracuti, Benedetta Barchielli, Christian Napoli, Anna Maria Giannini and Giovanna Parmigiani
Violence against health-care workers represents a public health issue that affects individuals, organizations and may have legal consequences. In Italy, workplace violence (WPV…
Abstract
Purpose
Violence against health-care workers represents a public health issue that affects individuals, organizations and may have legal consequences. In Italy, workplace violence (WPV) constitutes a “sentinel event”, defined as a particularly serious, potentially avoidable adverse event, which may result in death or serious harm to health-care workers, and which leads to a loss of public confidence in the health-care system. In 2007, the Italian Ministry of Health issued Recommendation No. 8, “Preventing acts of violence against health workers”, inviting each Italian Hospital to develop procedures and guidelines for dealing with and preventing acts of aggression. This study aimed at investigating the appropriateness of the procedures and guidelines developed by the Italian hospitals.
Design/methodology/approach
Procedures on preventing violence against health-care workers published by 29 Italian Hospitals between 2007 and 2020 were collected retrospectively via Web searches and further evaluated according to their compliance with the 2007 Italian ministerial recommendations.
Findings
A total of 9 documents out of 29 were fully compliant with the 2007 Ministerial Recommendation, 18 were partially compliant, while 2 were totally non-compliant. A total of 24 documents explicitly addressed the management of verbal and physical aggression, whereas 20 set appropriate training on de-escalation techniques for nurses and medical staff. Psychological support was fully considered in 11 procedures, partially considered in 14, while not included at all in 4.
Originality/value
Public procedures on preventing violence against health-care workers in Italian hospitals are scarcely compliant with the Ministerial Recommendations. The absence of specific instructions to address the needs at territorial level and the lack of support provided to health-care workers is a weak point in the effective management of WPV.
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Mahdi Salehi, Hossein Tarighi and Malihe Rezanezhad
The purpose of this paper is twofold: first, to investigate the relationship between some characteristics of corporations including firm size, financial leverage, profitability…
Abstract
Purpose
The purpose of this paper is twofold: first, to investigate the relationship between some characteristics of corporations including firm size, financial leverage, profitability, firm age and the type of industry with social responsibility disclosure of firms listed on Tehran Stock Exchange (TSE); and second, to study the association between the level of corporate social responsibility disclosure (CSRD) and some of the audit variables such as audit fees, audit tenure and audit firm’ size.
Design/methodology/approach
The study population consists of 125 firms listed on the TSE during the years 2010–2015. Following Salehi et al. (2017), content analysis is used to measure the level of social responsibility disclosure, and hypotheses are performed using multiple regression analysis and R software.
Findings
The results represented that there is a positive significant relationship between a firm size and a firm age with the level of CSRD. However, there is a negative significant association between financial leverage and profitability with the level of CSRD. Given that CSRD is different among various industries and the type of industry can be an influential factor in CSRD, an industry type’ variable in the fourth hypothesis is of a type of index variable and has eight levels, of which the first level is ranked as the base level. Our findings showed that the level of CSRD at industries of machinery and appliances, production of metal products, food and beverage products, and textiles is lower than the baseline level (pharmacy). Nevertheless, companies in the fifth industry (mineral products) have a higher level of CSRD in comparison with the pharmacy industry. Moreover, the authors find that there is a significant positive connection between audit fees and CSRD. This implies that Iranian managers in an inflationary economy probably manage earnings when they provide more CSRDs, which leads to increase in the audit risk and audit fees.
Practical implications
Needless to say, the findings of this paper will have practical implications for investors, auditors and other users of financial statements. First of all, this study will aware them of the fact that when a country faces economic sanctions and most of its companies are in financial strain investors should not consider the firms engaging in corporate social responsibility activities to behave morally and provide transparent financial reports. Second, the results will convince auditors to be conservative toward the firms that are financially distressed, for audit risk of them will be high. Thus, policymakers should be cautious concerning directors’ opportunistic actions and increase monitoring to enforce social obedience.
Originality/value
The turning point of this research is related to the time period of research related to firms that have faced severe financial problems due to economic sanctions. In fact, the study revealed another aspect of CSRD that could have negative consequences when managers are in financial strain and take opportunistic actions.
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The issue that revolves around corporate governance and corporate environmental reporting (CER) has always been an essential element deliberated upon globally. A good corporate…
Abstract
Purpose
The issue that revolves around corporate governance and corporate environmental reporting (CER) has always been an essential element deliberated upon globally. A good corporate governance mechanism instills an investor’s confidence and ensures a transparent process that facilitates more disclosures and quality reporting. Precisely, the purpose of this paper is to investigate the relationship between corporate governance variables, namely, board size, board independence, board meeting (BM), risk management committee composition and CER in Nigeria. This study utilized the data obtained from the annual reports of 24 non-financial public listed companies in the Nigeria Stock Exchange comprising three sectors, namely, industrial goods, natural resources and oil & gas for the period of 2011–2015. The model of this study is theoretically based on agency theory. In analyzing data, this study utilized panel data analysis. Based on the Hausman test, the random effect model was used to examine the effect of predictors on CER. The result indicates a positive significant relationship between board independence and CER. Similarly, a positive significant relationship between BM and CER is revealed in the study. However, there is no significant relationship between other hypothesis variables and CER. Finally, the study provides suggestions for future research and several recommendations for regulators, government and accounting professional bodies.
Design/methodology/approach
The data was analysed using statistics.
Findings
The result indicates a positive significant relationship between board independence and CER. Similarly, a positive significant relationship between BM and CER is revealed in the study. However, there is no significant relationship between other hypothesis variables and CER.
Originality/value
There are no prior studies linking risk management committee with CER.
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