Helena Santos de Oliveira | Instituto Politecnico do Porto (original) (raw)

Papers by Helena Santos de Oliveira

O governo das sociedades tem vindo a ser alvo de uma atenção crescente, visível através de um con... more O governo das sociedades tem vindo a ser alvo de uma atenção crescente, visível através de um conjunto de regras e de procedi-mentos cuja finalidade é otimizar o desempenho das organizações. A responsabilidade social é assumida pela adoção voluntária de preocupações e de medidas para com a Comunidade, daí que ser socialmente responsável é estar muito para além do mínimo exigido legalmente. Ao analisar a relação entre o governo das sociedades e a respon-sabilidade social, constata-se que ambos têm sido investigados de forma crítica e independente. Com este trabalho procura-se compre-ender e simultaneamente interpretar e transmitir como é que as sociedades emitentes de ações, admitidas a negociação no merca-do de cotações oficiais da NYSE Euronext Lisbon, observam essa relação à luz de três modelos empíricos. Neste âmbito, apresenta-se um estudo de caso para se apreciar o comportamento das em-presas que constituem o PSI201, à data de 31 de dezembro de 2012, para o período compreendido...

Revista Universo Contábil, 2010

In this paper we discuss and analyze the Financial Statements (FS) prepared in accordance with th... more In this paper we discuss and analyze the Financial Statements (FS) prepared in accordance with the Accounting Standards System (ASS) proposal, presented by the Accounting Standards Committee (ASC), compared with the FS prepared in accordance with the Official Accounting Plan (OAP), in force in Portugal for the imposition of the Decree-Law n° 410/89 of November 21st. Thus, we arranged separately the normative aspects that govern the implementation of these FSs with comparative references among them, not with the intention to subjugate some over others, but to show their differences regarding substance, form and purpose. Being the financial statements the privileged way to inform interested parties about the economic and financial position of economic entities, it is normal to be the subject of constant worry about how to do. The ASS is part of that concern, through a need for communitary accounting standardization, updating a normative document, the OAP, which was late in getting to know updates that would attend the new economic realities. The changes are numerous and significant and deal, necessarily, with how to think and act in accounting.

Proceedings of the 18th European Conference on e-Learning, 2019

Asian Journal of Economics, Business and Accounting, 2021

The objective of this study was to examine how good working environment on work performance of te... more The objective of this study was to examine how good working environment on work performance of teachers across private higher institutions in Buea. The sample size included a total of one hundred and seven (107) teachers drawn from one hundred and eighty seven (187) teaching staff of the selected institutions. Nine (9) schools were first selected purposely base on their staff strength. Then four schools were further selected using the simple probability random sampling technique. Respondents were then selected proportionately to the size of the various teaching staff. Data was analysed using both descriptive and inferential statistics. The researcher used a multiple regression model that predicted effects of work environment on employee commitment in the Buea municipality. Findings from the study showed that employer/employee relations, working condition and reward and compensation were positive and significantly affect the commitment of teachers in private higher institutions of le...

Journal of Risk and Financial Management, 2020

This paper examines the ongoing transition to the revised Organisation for the Harmonisation of B... more This paper examines the ongoing transition to the revised Organisation for the Harmonisation of Business Law in Africa Act on Accounting and Financial Reporting for companies in general and to the International Financial Reporting Standards for listed and group companies with a particular focus on recent institutional developments and corporate concerns. The study used 80 professional accountants, most of whom were members of the Institute of Chartered Accountants of Cameroon and academics. Using the descriptive statistics, the study shows that the transition to the revised OHADA brings about a high level of comparability and transparency of the financial statements, that the International Financial Reporting Standards can be implemented in Cameroon (but not fully), and that the benefit of the transition exceeds the cost.

Corporate Board: role, duties and composition, 2017

This analysis investigates how family ownership structure affects the corporate performance of Po... more This analysis investigates how family ownership structure affects the corporate performance of Portuguese listed firms using a panel data set covering the period from 2006 to 2014. Three characteristics of family firms (such as active management, active founder or heir and second blockholder) were examined with respect to the corporate performance. The main finding is that family firms over perform non-family in term productivity and profitability. This indicates that companies that have total family control are more productive and profitable than those market favour firms that the family does not have total ownership. Specifically, family firms with active founders perform better whereas those with active heirs significantly outperform compared to family firms with passive owners or heirs. Family firms with a family member in the company as either CEO or Chairman create more value and are more profitable than non-family firms. Family firms with descendant as CEO perform better mean...

e3, 2021

Numa época em que as economias que sustentam o sistema financeiro e empresarial são abaladas por ... more Numa época em que as economias que sustentam o sistema financeiro e empresarial são abaladas por graves crises sistémicas e fraudes financeiras, surge uma pressão política cada vez mais acentuada ao nível do escrutínio da diversidade do conselho de administração (CA) das empresas, no sentido de perceber se, de facto, um grupo heterogéneo é capaz de produzir decisões estratégicas e táticas mais adequadas para o futuro da empresa. A par disto surgem questões relativas ao papel da Mulher no CA, concorrendo para a ideia de que esta poderá contribuir positivamente na gestão empresarial. Neste contexto, o presente estudo tem por objetivo analisar e caraterizar a diversidade do CA das empresas cotadas no PSI-20 em 2019. Especificamente, pretende-se analisar a diversidade à luz dos mecanismos formais de Governo das Sociedades de caráter interno sob quatro dimensões: (i) diversidade de género; (ii) diversidade etária; (iii) diversidade cultural/étnica; e (iv) diversidade na estrutura (indepe...

In this work, we review some of the literature that deals with the relevance of the transparency ... more In this work, we review some of the literature that deals with the relevance of the transparency of financial information disclosed by firms whose s tock is traded on regulated financial markets located in the European Union. From this re view it is agreed that the transparency of financial reports is becoming an increasingly impor tant question since the internationalization of firms and globalization of markets are becoming stronger. These situations affect capital flow and the development of financial markets. Dire ctive 2004/109/CE of the European Parliament and Council, issue on 15th December 2004 , shows the preoccupation of European Members about the use the of criteria for transpare ncy, namely in following the 2003/34/CE Directive, related with the Prospectus, in the case of firms that have issued stock. The importance of transparency also increases with the Sarbanes-Oxley Act.

O presente ensaio aborda os negócios e os desafios que os empreendedores enfrentam no quotidiano ... more O presente ensaio aborda os negócios e os desafios que os empreendedores enfrentam no quotidiano das suas atividades comerciais, muito para além dos números. Com efeito, por detrás dos negócios existe um conjunto de factos que, com certeza, se refletem financeiramente nas empresas, mas não são suscetíveis de ser captados, muito menos avaliados pelas teorias quantitativas de análise dos negócios, dado a sua origem não ser económica, nem financeira. Assim, no presente ensaio é feita uma análise de caso de uma das mulheres mais empreendedoras e notáveis da época das explorações marítimas portuguesas. Através do seu caso e com recurso a uma análise alternativa às finanças, psicológica e sociológica dos factos sociais, é possível ilustrar que os negócios evidenciam dificuldades financeiras, entram em declínio e perdem-se, mas as causas dessas perdas são sociais e não financeiras, como poderíamos concluir em primeira instância.

Approaches to Global Sustainability, Markets, and Governance

The objective of this paper is to analyze the performance of the largest listed companies of the ... more The objective of this paper is to analyze the performance of the largest listed companies of the European Union between 2010 and 2017, and how they are affected by the gender influence of the Chief Executive Officer (CEO) and the percentage of women on their Boards of Directors. These companies were chosen due to the lack of studies based on companies in the European Union and because the studies related to this subject have ambiguous results. Those ambiguities relate to the finding of positive, negative, or no relationship between gender diversity and company performance. This study is measured utilizing two indicators: ROA and Tobin’s Q. Using a regression model based on a sample of 308 European companies, and the OLS method, a negative relationship was found between having a female CEO and Tobin’s Q. When the ROA is analyzed, this relationship is also negative, but not significant. These results suggest that the fact that the position of CEO is occupied by a woman, has no influence on the company when analyzing the accounting results (ROA). It also negatively influences the market value of the company which can be attributed to gender discrimination, an inequality that is still present in society in general, as well as the labor market. The ratio between the percentage of female board members and the performance indicators is positive, but not significant. This suggests that the percentage of women board members remains too low to allow companies to take advantage of the benefits of gender diversity.

Approaches to Global Sustainability, Markets, and Governance

Journal of Risk and Financial Management

This study examines the whether or not family firms are financially healthier than non-family in ... more This study examines the whether or not family firms are financially healthier than non-family in terms of capital structure and leverage. It therefore takes into consideration the existence of any significant differences between the leverage and risk choices of family and non-family firms. Using a panel data set of 888 firms and 7104 firm-year observations of unlisted small and medium size firms over the period 2007–2014, we present that family owned businesses have lower financial structure than those of non-family owned businesses. This indicates that most family firms use less debt financing than non-family firms, and as such maintain a lower level of debt. Secondly, family firms demonstrate lower risk as illustrated by the Altman Z-score. The Altman Z-score scale illustrates a contrary relationship of significance with respect to family firms and their counterparts in terms of the operation aspect of the business’s risk factors. Family firms managed their business operations wit...

Revista Universo Contabil, 2008

In this work, we review some of the literature that deals with the relevance of the transparency ... more In this work, we review some of the literature that deals with the relevance of the transparency of financial information disclosed by firms whose stock is traded on regulated financial markets located in the European Union. From this review it is agreed that the transparency of financial reports is becoming an increasingly important question since the internationalization of firms and globalization of markets are becoming stronger. These situations affect capital flow and the development of financial markets. Directive 2004/109/CE of the European Parliament and Council, issue on 15th December 2004, shows the preoccupation of European Members about the use the of criteria for transparency, namely in following the 2003/34/CE Directive, related with the Prospectus, in the case of firms that have issued stock. The importance of transparency also increases with the Sarbanes-Oxley Act.

espanolLa informacion contable constituye una de las bases fundamentales para la formacion de jui... more espanolLa informacion contable constituye una de las bases fundamentales para la formacion de juicios y la tomada de decisiones empresariales y, por ese motivo, debe cumplir los requisitos de calidad, objetividad, transparencia, rigor, responsabilidad e independencia. Con este fin, la informacion se ha desarrollado sobre la base de los principios contables y criterios, conceptos y supuestos subyacentes en el Marco Conceptual de las normativas dictadas por los organismos nacionales e internacionales y los principios contenidos en el Gobierno Corporativo y sus recomendaciones, teniendo en cuenta las necesidades de sus usuarios. El presente estudio tiene el objetivo explorar la relacion entre la informacion financiera divulgada y el Modelo de Gobierno Corporativo y proporcionar una comprension mejor y mas profunda de las caracteristicas de las empresas que influyen en la divulgacion. En esta investigacion se utilizo una muestra de empresas portuguesas no financieras, emitentes de accio...

Journal of Risk and Financial Management, 2020

Revista Universo Contábil, 2010

Proceedings of the 18th European Conference on e-Learning, 2019

Asian Journal of Economics, Business and Accounting, 2021

Journal of Risk and Financial Management, 2020

Corporate Board: role, duties and composition, 2017

e3, 2021

Approaches to Global Sustainability, Markets, and Governance

Journal of Risk and Financial Management

Revista Universo Contabil, 2008

In this work, we review some of the literature that deals with the relevance of the transparency ... more In this work, we review some of the literature that deals with the relevance of the transparency of financial information disclosed by firms whose stock is traded on regulated financial markets located in the European Union. From this review it is agreed that the transparency of financial reports is becoming an increasingly important question since the internationalization of firms and globalization of markets are becoming stronger. These situations affect capital flow and the development of financial markets. Directive 2004/109/CE of the European Parliament and Council, issue on 15th December 2004, shows the preoccupation of European Members about the use the of criteria for transparency, namely in following the 2003/34/CE Directive, related with the Prospectus, in the case of firms that have issued stock. The importance of transparency also increases with the Sarbanes-Oxley Act.

Journal of Risk and Financial Management, 2020