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As university-industry cooperation is associated with the transfer of knowledge and technology, this collaboration is an extremely important field of study for the world's economies that helps companies become more competitive. The present research, thus, sought to explore and analyse the literature related to university-industry cooperation, using a co-citation analysis. This study's objectives were to (1) identify the main co-cited references and the groups (i.e. clusters) they form and (2) discuss the challenges this literature presented in the study of university-industry cooperation. The articles reviewed were obtained with a search of the ISI's Web of Science and were submitted to a bibliometric analysis using VOSviewer software. This systematic literature review revealed that companies are increasingly focused on cooperation with universities. The results include four clusters, namely, (1) Absorption Capacity, Knowledge and Competitiveness in University-Industry Relations, (2) Impact of Knowledge Spill-overs on University-Industry Relations, (3) Strategic Alliances for Industry Innovation, and (4) University-Industry Cooperation. This study thus contributes to a greater and more detailed understanding of the production flow, scientific practices, and trends in this new and stimulating field of research.

We examine how optimism predicts creativity both directly and through the mediating role of positive affect and the positivity ratio (the ratio between the frequency of positive and negative affective states). Five hundred and ninety five employees reported their positive and negative affect, as well as their optimism. Their creativity was reported by supervisors. The main findings are the following: (1) optimism predicts creativity both directly and through the mediating role of positive affect and the positivity ratio; (2) the relationship between the positivity ratio and creativity is curvilinear, in such a way that an ''excessive'' ratio is detrimental to creativity. The findings stress the relevance of optimism both for individuals and organizations, and suggest that examining positivity ratios is fruitful in the creativity domain, as it has been in other domains, and that negative affect should not be viewed simply as an obstacle when studying employees' creativity. We are grateful to Fred Luthans, Carolin Youssef, and Bruce Avolio for their permission to use the PsyCap questionnaire, from which the items for measuring optimism were extracted.

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Purpose The purpose of this paper is to identify the most extensively studied topics with respect to the triple, quadruple and quintuple helix models developed to explain these links. The review also focusses on ascertaining future trends within this field. Design/methodology/approach Relevant documents obtained from a search in the Institute for Scientific Information’s Web of Science were submitted to bibliometric analysis using VOSviewer software. Findings The results of this systematic review illustrate that, despite growing concern about society and the environment, issues related to the three helixes of universities, industries and governments continue to be the most often studied. However, an additional focus on research on the quadruple and quintuple helix models has emerged in the more specialised literature. An analysis of co-citations also identified four clusters of research such as, innovation and knowledge policies; entrepreneurial universities; business innovation strategy; and triple helix stakeholders in innovation, knowledge and regional development. Originality/value Some policies are needed. Polices that undergo the mapping of the universities’ specialisations, the industry/society necessities and financial measures could foster the relations between all the stakeholders.

There has been an increased interest in women's entrepreneurship research due to the changing sociocultural conditions in the global marketplace. Despite this trend, there is still a lack of understanding about the role women entrepreneurs play in the internationalization process of firms. The aim of this article is to systematically review the literature on women's entrepreneurship and internationalization by examining the trends in the research. A bibliometric analysis is conducted on articles in the Web of Science databases to understand which researchers are publishing the most and how they are related to other researchers in the field. In addition, a content analysis of the articles from the bibliometric analysis is conducted that reveals three main clusters from the research: (a) epistemological position and gender, (b) cultural and social reasons for the creation of businesses, and (c) motivations, business characteristics, and performance. From the bibliometric and content analysis, implications for policy makers and future research directions for women's entrepreneurship and internationalization patterns are stated.