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The corporate communications literature recently focused on corporate board gender diversity, specifically looking at two central aspects: gender quotas and equitable target percentages for women on corporate boards. This paper extends the debate by focusing on board gender diversity and critical mass theory.

The paper gives a conceptual viewpoint on the issues raised in the literature on board gender diversity through a critical mass theory lens.

Following the 2022 European Union (EU) directive, all EU member states will have to attain a 40% women representation on large corporate boards to achieve board gender diversity and what has been termed a “critical mass”. However, the literature indicates that gender diversity benefits may not be achieved if a critical mass is not composed of independent women directors who create a voice that produces a collective action. The authors highlight why a critical mass may not be achieved. The inconsistency in prior research linking corporate board gender diversity to economic performance may result from the critical mass of women directors not reflecting an independent collective action. However, as gender-diverse boards evolve, the authors argue that women will not just be seen as female directors but will be accepted on equal terms with their male counterparts and have an equal voice; gender will no longer be an issue and critical mass theory may then become irrelevant.

From a corporate communications perspective, this study will focus the minds of human resources (HR) professionals on the importance of the composition of women on corporate boards if the HR professionals wish to obtain the full potential benefits of board gender diversity. Theoretically, this study highlights the importance of critical mass and collective action when researching the economic benefits of corporate board gender diversity. Investment analysts may wish to look more closely at the structure of corporate boards and not just the numbers.

This paper gives a conceptual viewpoint on the critical mass theory and corporate board gender diversity, identifying that it is not just the numbers that are important but also the issue of minority independence and collective action, and this is, therefore, unique in this respect. Future research should identify if a critical mass (not just numbers) of women on corporate boards has been achieved. Only then that the linkage, based on critical mass theory, between board gender diversity and corporate performance/profitability can be made. Knowing whether board sizes are being increased to accommodate the added female directors would be also interesting, or will the new female directors replace existing male directors? However, the most important research question, once gender diversity has been achieved, could be: Is critical mass theory relevant with respect to board gender diversity?

It has been suggested that organisations with a better balance, or critical mass, of women would be more tolerant of difference and foster the inclusion of other women. This paper seeks to investigate whether a strategy of critical mass can really work in the engineering sector.

The data are based on research funded by the ESRC, and problematise critical mass theory through semi‐structured qualitative interviews and focus groups with female students from a range of engineering disciplines.

The findings demonstrate that women engineering students accept gender discrimination, view the industry positively, value their “novelty” status, and are critical of other women.

While these attitudes may be a result of women's assimilation into the existing engineering culture, they do little to further women's cause in engineering. Furthermore, it points to both the necessity, and difficulties, of transforming the engineering culture to ensure that the engineering professions are a place where women can not only survive but also thrive.

While previous research has addressed the critical mass of women in science, engineering and technology, this research critiques critical mass theory, not only because women continue to remain isolated within the sector, despite increasing numbers, but also because many women engineers reinforce the masculine culture within engineering.

The interest in promoting diversity in corporate governance is increasing gender equality on boards. Even so, previous research shows that women are underrepresented on boards of directors. This study aims to explore how an increasing presence of women on boards reduces gender pay disparity among nonexecutive directors (NEDs).

This study explores how an increasing presence of women on boards reduces gender pay disparity among NEDs.

The results indicate that for boards to reduce the gender pay disparity among NEDs, women need to reach a critical mass of 33% of board members. In addition, this study finds that women’s presence on influential committees further reduces the gender pay disparity among NEDs.

The study uses critical mass and social identity theories to explain the impact of women directors on NEDs’ remuneration in a sample of 365 companies listed on the London Stock Exchange over 16 years (1999–2015). The findings indicate the importance of reducing gender pay disparity as a tool to promote gender equality on boards.

This study provides evidence on the importance of corporations including gender diversity on board committees to reduce gender pay disparities at the board level.

In addition, this study finds that women’s presence on influential committees further reduces gender pay disparity among NEDs.

Mobile social apps permeate every facet of daily life through the pervasive use of smartphones. Customer retention with mobile social apps has become extremely important for app-related companies. The purpose of this paper is to explore why experienced users in mobile social apps (e.g. WeChat) are likely to continue using the app.

This study proposed a conceptual model to identify key determinants of continuance intention of WeChat users and highlight the effects of individual experience. Data were collected from WeChat users, which is one of the most popular mobile social apps in China. The study employed partial least squares regression to test the research model based on a survey of 295 valid responses.

Results showed that trust, which was driven by user satisfaction and perceived critical mass, played a critical role in influencing the continuance intention of WeChat users. Moreover, tie strength exerted a negative moderating effect on the relationship between trust and continuance intention. Specifically, tie strength and perceived critical mass had strong impacts on the continuance intention of low-experience users. In addition, the effect of frequency was closely associated with the continuance intention of high-experience users.

This study addressed the issue of mobile social app continuance intention by providing an innovative means to explore the key antecedents of user continuance intention from the experience perspective. The findings not only prove that trust plays a central role in influencing the continuance intention of experienced users but also reveal that the determinants of continuance intention vary among users with different experience. The results provide insights into the key antecedents of experienced WeChat user continuance intention and contribute to the literature on mobile social apps and individual differences.

The results provide suggestions for mobile social app practitioners to effectively plan mobile social app retention practices and to set up appropriate incentive mechanisms for retaining users with different experiences.

Although abundant studies have focused on the adoption of media users, few studies have investigated the post-adoption behavior of experienced users in the context of mobile social apps. This study revealed the key determinants of the continuance intention of WeChat users and pinpointed the different impacts of these antecedents on users with different levels of experience. It also provides useful guidelines for practitioners to effectively retain users with different levels of experience.

This study aims to examine the relationship between female directors and bank risk. In particular, whether such a relationship varies across sound or unsound banks and with or without a critical mass of female directors is tested.

Using a sample of 215 listed banks from 40 countries over the period 2008–2016, this study carries out panel data analyses and tests all the model specifications on four different measures of risk (common equity ratio, leverage, NPLs ratio and price volatility).

The findings show that increasing the number of female directors does not reduce bank risk when banks are unsound. When banks are sound, female directors have a significant and positive role in reducing risk, only until reaching a critical mass of women.

This study provides useful corporate governance indications for policymakers and practitioners. Advantages of gender diversity on boards are recognized especially in sound banks, but increasing the number of women directors beyond the critical mass may not lead to lower risk. In fact, ethical or legal pressures aimed at increasing gender diversity on boards (i.e. soft or hard gender quotas) may cause undesired effects on bank risk, especially if female directors are not chosen on merit and skills. Moreover, gender-balanced boards, namely, with a “dual critical mass,” seem to assure more effective decision-making processes.

This study provides empirical evidence on female board members and risk minimization, differentiating between sound or unsound banks. Furthermore, this study contributes to the literature on the critical mass of women on the board of directors by testing this theory for these two categories of banks.

Sustainable success of group-buying web sites implies that consumers not only accept them initially but also use them continuously. Most group-buying web sites, however, are unable to achieve such sustainable success. Drawing on expectation-confirmation model (ECM), the purpose of this paper is to examine the factors that influence group-buying web sites continuance.

In total, 605 valid responses were collected via a survey of a leading group-buying web site in China. Structural equation modeling was used to test the research model. This study also compared the three competing models of continued use behavior, namely, ECM, the research model and the integrated model.

The results show that perceived web site quality, perceived price advantage and confirmation are important determinants of consumer satisfaction, while perceived web site quality, perceived reputation, satisfaction and perceived critical mass significantly influence consumers’ continuance intention. The research model accounts for more variance in satisfaction and continuance intention than ECM and is the best-fitting model among the competing models.

Drawing on ECM, this research proposes a model by incorporating three online group-buying characteristics (perceived price advantage, perceived reputation and perceived web site quality) and two social influence factors (subjective norm and perceived critical mass). Specially, this study uses these three online group-buying characteristics to represent perceived usefulness in ECM. These constructs are found to influence consumer satisfaction and continuance intention. This study extends ECM and provides a better explanation of consumers’ post-purchase behavior in the online group-buying context.

The objective of this paper is to explore and determine a set of factors that are critical to the success of business‐to‐business (B2B) e‐markets in the aerospace and defence, healthcare, higher education and local government industry sectors, in order to advance our current understanding of what factors facilitate e‐market adoption and success. The paper examines critical success factors (CSFs) for e‐markets from a strategic fit perspective.

The study adopted a semi‐inductive qualitative approach based on a review of the literature, followed by a pilot study and 58 indepth semi‐structured interviews with senior level executives in buyer, supplier, e‐market and third‐party organisations. Qualitative data analysis software, QSR N6, was used to code and analyse the interview data for citations that corresponded with the candidate e‐market CSFs that had been identified either in the literature, pilot study or during the course of the interviews with respondents. The CSFs for e‐markets were ranked by the frequency of respondents citing a particular CSF.

The study found eight factors that are critical to e‐market success and four factors (critical mass, integration issues, value proposition, and leadership participation) were found to be conducive to e‐market success in all four industry sectors. Likewise, four factors (industry knowledge, revenue model, branding and reputation, and rich content) were found to be only conducive to e‐market success in three of the four industry sectors.

The paper can help academic researchers, managers, consultants, practitioners and other professionals better understand what factors are critical to the success of e‐markets and other online enterprises operating in the B2B marketspace.

There have been numerous calls for more empirical research on the dynamics of e‐market adoption for more than a decade. To date, research on the CSFs for e‐markets has been largely anecdotal and sporadic with a paucity of studies noting factors that are likely to be favourable to e‐market success. This study addresses the call for more research on e‐markets and imparts empirical evidence on factors that are perceived to be conducive to the success of e‐markets. It contributes to the base of knowledge on e‐markets by relating the concept of CSFs with the theory of strategic fit as, to date, no known study has examined CSFs for e‐markets from a strategic fit perspective. The study also presents the benefits capabilities‐industry participants’ needs fit conceptual model as a precursor for theory building in future studies on B2B e‐markets and informs stakeholders involved in developing e‐markets or other online B2B ventures to better comprehend the conditions and determinants of success.

The objective of this paper is to explore and determine a set of factors that are critical to the success of business-to-business (B2B) e-markets in the aerospace and defence, healthcare, higher education and local government industry sectors, in order to advance our current understanding of what factors facilitate e-market adoption and success. The paper examines critical success factors (CSFs) for e-markets from a strategic fit perspective.

The study adopted a semi-inductive qualitative approach based on a review of the literature, followed by a pilot study and 58 indepth semi-structured interviews with senior level executives in buyer, supplier, e-market and third-party organisations. Qualitative data analysis software, QSR N6, was used to code and analyse the interview data for citations that corresponded with the candidate e-market CSFs that had been identified either in the literature, pilot study or during the course of the interviews with respondents. The CSFs for e-markets were ranked by the frequency of respondents citing a particular CSF.

The study found eight factors that are critical to e-market success and four factors (critical mass, integration issues, value proposition, and leadership participation) were found to be conducive to e-market success in all four industry sectors. Likewise, four factors (industry knowledge, revenue model, branding and reputation, and rich content) were found to be only conducive to e-market success in three of the four industry sectors.

The paper can help academic researchers, managers, consultants, practitioners and other professionals better understand what factors are critical to the success of e-markets and other online enterprises operating in the B2B marketspace.

There have been numerous calls for more empirical research on the dynamics of e-market adoption for more than a decade. To date, research on the CSFs for e-markets has been largely anecdotal and sporadic with a paucity of studies noting factors that are likely to be favourable to e-market success. This study addresses the call for more research on e-markets and imparts empirical evidence on factors that are perceived to be conducive to the success of e-markets. It contributes to the base of knowledge on e-markets by relating the concept of CSFs with the theory of strategic fit as, to date, no known study has examined CSFs for e-markets from a strategic fit perspective. The study also presents the benefits capabilities-industry participants’ needs fit conceptual model as a precursor for theory building in future studies on B2B e-markets and informs stakeholders involved in developing e-markets or other online B2B ventures to better comprehend the conditions and determinants of success.

This review aims to provide an overview of the ideas, theories and research relating to the diffusion of innovations. It seeks to place the relationship between librarians and the Internet and related networked information within the context of diffusion research. It includes a brief background to diffusion research and a description of the basic model proposed by Everett M. Rogers. The theory of change agents and change agencies is discussed with the role of weak ties in the diffusion of ideas through communication networks. The implications of the need to achieve a critical mass in some applications of networked communication are outlined together with theories about critical mass. The review identifies the characteristics that make these technologies unique and discusses the implications for future research. Finally, the relevance of diffusion theory to librarians seeking to introduce new communication‐based technologies into academic departments is discussed.

The purpose of this paper is to investigate dynamic characteristics of opposed-conical gas-dynamic bearings considering five degree-of-freedom motion, including translation and tilt.

The steady-state Reynolds equation and perturbed Reynolds equations are solved on the surface of conical bearings, and both stiffness and damping coefficients are calculated. A formula for quickly calculating critical mass is deduced to discriminate the stability of the rotor considering the five degree-of-freedom motion.

Results show that the stability of the rotor is mainly determined by translation rather than tilt. The formula of critical mass is validated by comparing the results with traditional Routh–Hurwitz criterion.

The formula proposed in this paper greatly simplifies the solution of critical mass, which facilitates the rotor stability design. It is applicable for opposed-conical bearings, opposed-hemispherical bearings and spherical bearings. The results provide theoretical guidance for the design of gas-dynamic bearings.