Washington Martins Silva and Osvaldo Candido
This paper aims to assess all the Brazilian electric power transmission line auctions occurred between 1999 and 2017.
Abstract
Purpose
This paper aims to assess all the Brazilian electric power transmission line auctions occurred between 1999 and 2017.
Design/methodology/approach
A copula-based Roy/endogenous switching regression model is used. The suitability of this model is twofold: it takes into account the selection bias problem involving auctions data and it allows more flexibility in modeling the joint distribution between the unobserved components of the selection and outcome equations; thus, normal distribution assumptions are not needed.
Findings
The main results suggest that stated-owned companies have the highest probability of winning an auction, and there is a non-competitive behavior among the players in the auction. The results also suggest some departure from joint normality in the data.
Originality/value
The copula-based sample selection approach used in this paper is consistent under non-normality and allows one to address different types of nonlinearities in the data such as asymmetry and heavy tails.
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Osvaldo Candido and Jose Angelo Divino
The purpose of this paper is to investigate the relationship between inflation, interest rate, and output gap in the US economy in the post Second World War period, without…
Abstract
Purpose
The purpose of this paper is to investigate the relationship between inflation, interest rate, and output gap in the US economy in the post Second World War period, without assuming any structure nor imposing any restriction on that relationship.
Design/methodology/approach
The authors apply vine copula modeling to investigate asymmetry and tail behavior on both conditional and unconditional dependence among those variables. The dependence parameter is allowed to evolve over time according to a stochastic autoregressive processes. Additionally, a conditional expectation based on vine copula is used to analyze the conditional expectation of interest rate.
Findings
The results suggest that the joint distribution, both conditional and unconditional, of the interest rate and inflation is asymmetric to the left, while the pair interest rate and output gap have symmetrical distributions coupled with low persistence and high volatility. Besides the unquestionable evidence that the US monetary policy has been mostly focused on inflation stabilization, there is also indication of nonlinearity in the conditional expected interest rate and asymmetric behavior by the Federal Reserve in the long run.
Originality/value
The vine copula modeling allows for several forms of asymmetries and tail dependence, which is a flexible modeling strategy for multivariate distributions. Moreover, the conditional expectation implied by vine copulas is suitable to account for nonlinearity in the interest rate conditional on inflation and output gap.
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Osvaldo Candido Silva Filho and Flavio Augusto Ziegelmann
The aim of this paper is to measure and evaluate the relationship between returns-volatility and trading volume and returns and volatility of financial market indexes using…
Abstract
Purpose
The aim of this paper is to measure and evaluate the relationship between returns-volatility and trading volume and returns and volatility of financial market indexes using time-varying copulas.
Design/methodology/approach
The time dynamic dependence parameter is allowed to evolve according to a restricted ARMA-type equation which includes a constant term that is driven by a hidden two-state first-order Markov chain.
Findings
In using this time dynamics in conjunction with non-elliptical distribution functions and tail dependence measure, the authors are allowing for (and focusing on) non-linearities in the returns-volume-volatility relationship. The results support the assumption that current trading volume provides information about future volatility as well as that there is a negative relationship between returns and their volatilities in financial market indexes.
Originality/value
The authors provide an interesting empirical interpretation for the regimes the authors have identified: in the high dependence regime the sequential information arrival hypothesis and/or noise trading hypothesis are valid, consequently future volatility prediction is possible and persistent but does not last indefinitely; in the low dependence regime, the future volatility prediction is more unlikely to occur, since both trading volume and return negatives have a low (near zero) relation with future volatility.
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Rodrigo Goyannes Gusmão Caiado, Osvaldo Luiz Gonçalves Quelhas, Janice Helena de Oliveira Dias, Maria de Lurdes Costa Domingos, Sergio Luiz Braga França and Marcelo Jasmim Meiriño
This paper aims to analyze the adherence of social responsibility management (SRM) in Brazilian organizations and to identify the driving and the resistance forces to implement it.
Abstract
Purpose
This paper aims to analyze the adherence of social responsibility management (SRM) in Brazilian organizations and to identify the driving and the resistance forces to implement it.
Design/methodology/approach
This article presents a deep literature review on SRM, corporate social responsibility (CSR) and stakeholder management, which aim to support a survey research to define, according to experts, the market perception of adherence of SRM.
Findings
The paper presents evidence that there is adherence on the part of the practices of organizations that adhere to the theoretical foundations of SRM in Brazil. It was found that organizations should seek to improve nine areas to implement SRM and can use each of these areas strategically or all together.
Practical implications
This study provides an opportunity for employees whose perceptions are aligned based on educational programs and engagement in CSR, and these gains favor the improvement of their own management and the quality of relationships.
Social implications
The research provides an opportunity to recast actions and the possibility of being recognized by stakeholders as active agents in this process.
Originality/value
This study sheds new light on both SRM and the CSR literature because of its attempt to bridge the theoretical foundations and market practices, which was performed to verify the gaps in corporative SRM process of Brazilian organizations. This study highlights for researchers and practitioners a relevant field of study whose importance is widely recognized but whose results remain scarce and limited.
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Samuel Moretti Bernardo, Rosley Anholon, Olivio Novaski, Dirceu Silva and Osvaldo Luiz Gonçalves Quelhas
The purpose of this paper is to identify what are the main causes that lead strategies to decline at execution phase.
Abstract
Purpose
The purpose of this paper is to identify what are the main causes that lead strategies to decline at execution phase.
Design/methodology/approach
The paper adopted the strategy of survey with the 69 Brazilian businessmen. The questionnaire was developed from 16 causes pointed out in the literature and the results analyzed using Cronbach’s α coefficient, multidimensional scaling, exploratory factor analysis and Pearson correlation coefficient.
Findings
The results of statistical analysis showed that the main causes are primarily associated to leaders’ defaults during execution strategies, lack of support and feedback of senior management, no involvement of the teams during the strategies formulation, failure of communication on the strategic objectives in all organizational levels, and others.
Research limitations/implications
The 69 businessmen work in different sectors and there may be specific causes for each sector. The research presented by this paper did not have objectives to analyze specific sectors of the economy.
Practical implications
The results are extremely important and useful for managers during the implementation phase of the strategies and researchers in the field of business strategies.
Originality/value
There are no research with the same focus and objective presented by this paper about Brazilian companies.
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Barbara de Lima Voss, David Bernard Carter and Bruno Meirelles Salotti
We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in…
Abstract
We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.