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Open Access
Article
Publication date: 10 January 2023

Orlando Telles Souza and João Vinícius França Carvalho

This study aims to analyze the efficient market hypothesis (EMH) of cryptocurrencies on multiple platforms by observing whether there is a discrepancy in the levels of efficiency…

1824

Abstract

Purpose

This study aims to analyze the efficient market hypothesis (EMH) of cryptocurrencies on multiple platforms by observing whether there is a discrepancy in the levels of efficiency between different exchanges. Additionally, EMH is tested in a multivariate way: whether the prices of the same cryptocurrencies traded on different exchanges are temporally related to each other. ADF and KPSS tests, whereas the vector autoregression model of order p – VAR(p) – for multivariate system.

Findings

Both Bitcoin and Ethereum show efficiency in the weak form on the main platforms in each market alone. However, when estimating a VAR(p) between prices among exchanges, there was evidence of Granger causality between cryptocurrencies in all exchanges, suggesting that EMH is not adequate due to cross information.

Practical implications

It is essential to assess the cryptocurrency market in a multivariate way, not only to favor its maturation process, but also to promote a broad understanding of its inherent risks. Thus, it will be possible to develop financial products that are actively managed in a more sophisticated cryptocurrency market.

Social implications

There is a possibility of performing arbitrage on different exchanges and market assets through cross-exchanges. Thus, emphasizing the need for regulation of exchanges in the digital asset market, as an eventual price manipulation on a single platform can impact others, which generates various distortions.

Originality/value

This study is the first to find evidence of cross-information for the same (and other) cryptocurrencies among different exchanges.

Details

Revista de Gestão, vol. 31 no. 2
Type: Research Article
ISSN: 1809-2276

Keywords

Open Access
Article
Publication date: 28 April 2022

Tatiana Iwai and João Vinícius França Carvalho

This paper aims to examine how verbal responses (denials vs apologies) following a trust violation in cooperative relationships influence reconciliation by changing attributions…

Abstract

Purpose

This paper aims to examine how verbal responses (denials vs apologies) following a trust violation in cooperative relationships influence reconciliation by changing attributions of responsibility for the transgression and transgressor’s perceived integrity. Additionally, the moderating role of perceived sincerity of the response is examined.

Design/methodology/approach

Two experimental studies were conducted with 465 participants. Hypotheses were tested using ordinary least squares (OLS) regressions and moderated serial mediation analyses with bootstrapping procedures.

Findings

In the occurrence of integrity-based trust violations, denials are more effective than apologies to repair trust. The positive indirect effects of these verbal responses on reconciliation are explained by a two-part mediating mechanism (attribution of responsibility followed by transgressor’s perceived integrity). Additionally, when responses are perceived as highly credible, denials are much more effective in deflecting blame than apologies.

Research limitations/implications

This study contributes to the literature on trust repair by examining when and why managers’ verbal responses to breaches of trust may be more or less effective in restoring cooperative relationships.

Practical implications

Managers must be aware that their perceived integrity following a breach of trust is influenced by the level of responsibility taken. Therefore, they should choose wisely which defensive tactics (apologies or denials) to use.

Social implications

As trust plays a central role in many cooperative relationships, choosing an appropriate response after a transgression is critical to solving conflicts both within and between organizations.

Originality/value

This work contributes to the reconciliation literature by uncovering the underlying cognitive mechanisms and boundary conditions by which different verbal responses influence reconciliation.

Details

RAUSP Management Journal, vol. 57 no. 3
Type: Research Article
ISSN: 2531-0488

Keywords

Book part
Publication date: 23 March 2017

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.

Details

Advances in Environmental Accounting & Management: Social and Environmental Accounting in Brazil
Type: Book
ISBN: 978-1-78635-376-4

Keywords

Open Access
Article
Publication date: 19 February 2021

Wilson Aparecido Costa de Amorim, Marcus Vinicius Gonçalves da Cruz, Amyra Moyzes Sarsur and André Luiz Fischer

The purpose of this work is to comparatively study human resources management (HRM) areas in Brazil, at the national level, analyzing how companies considered labor market and…

4931

Abstract

Purpose

The purpose of this work is to comparatively study human resources management (HRM) areas in Brazil, at the national level, analyzing how companies considered labor market and labor relations aspects when building their strategies and when configuring people management models in place in the country (2014–2019), based on local conditions.

Design/methodology/approach

The subject was approached through qualitative analysis, encompassing document survey, systematic literature review, specialists' panel discussions, eight focus groups (43 human resources [HR] managers), interviews (16 union members), applying institutional approach to people management.

Findings

In regards to labor market and unions, HR areas faced different conditions across Brazilian regions. They have dealt with those influences on their strategic and quotidian decisions in an unstructured fashion. HR areas remain constructed as traditional, adjuvant and far from strategic level. In the institutionalization process – normative isomorphism – a professional HR jargon use was identified. HR areas usually act in collective bargaining, resorting to specialized professionals or consulting companies. During the economic crisis, HR professionals' attitude had a reactive nature, responding to organizations leadership, with little dedication to the emerging context.

Practical implications

This work enables important players like HR managers, union members and specialists in public policies to interpret the institutionalization phenomena of practices related to management, labor market and labor relations in the country.

Social implications

Understanding the effects of the relations among state, companies and unions allows the different power vectors, acting upon the institutionalization process of people management areas in the Brazilian case, to be outlined.

Originality/value

This study applies the institutional approach to understand the economic and social heterogeneity affecting organizations in Brazil. It enhances the knowledge on HRM areas scope and their articulation toward labor market and relations.

Details

Revista de Gestão, vol. 28 no. 1
Type: Research Article
ISSN: 1809-2276

Keywords

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