Juliane Hahn

Bio: Juliane Hahn is an academic researcher. The author has contributed to research in topics: Foreign policy. The author has an hindex of 1, co-authored 1 publications receiving 356 citations.

Victims Of Groupthink A Psychological Study Of Foreign Policy Decisions And Fiascoes

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From Creativity to Innovation: The Social Network Drivers of the Four Phases of the Idea Journey

Abstract: Interest has burgeoned, in recent years, in how social networks influence individual creativity and innovation. From both the theoretical and empirical points of view, this increased attention has generated many inconsistencies. In this article we propose that a conceptualization of the idea journey encompassing phases that the literature has so far overlooked can help solve existing tensions. We conceptualize four phases of the journey of an idea, from conception to completion: idea generation, idea elaboration, idea championing, and idea implementation. We propose that a creator has distinct primary needs in each phase: cognitive flexibility, support, influence, and shared vision, respectively. Individual creators successfully move through a phase when the relational and structural elements of their networks match the distinct needs of the phase. The relational and structural elements that are beneficial for one phase, however, are detrimental for another. We propose that in order to solve this seeming ...

Political diversity will improve social psychological science.

Abstract: Psychologists have demonstrated the value of diversity--particularly diversity of viewpoints--for enhancing creativity, discovery, and problem solving. But one key type of viewpoint diversity is lacking in academic psychology in general and social psychology in particular: political diversity. This article reviews the available evidence and finds support for four claims: (1) Academic psychology once had considerable political diversity, but has lost nearly all of it in the last 50 years. (2) This lack of political diversity can undermine the validity of social psychological science via mechanisms such as the embedding of liberal values into research questions and methods, steering researchers away from important but politically unpalatable research topics, and producing conclusions that mischaracterize liberals and conservatives alike. (3) Increased political diversity would improve social psychological science by reducing the impact of bias mechanisms such as confirmation bias, and by empowering dissenting minorities to improve the quality of the majority's thinking. (4) The underrepresentation of non-liberals in social psychology is most likely due to a combination of self-selection, hostile climate, and discrimination. We close with recommendations for increasing political diversity in social psychology.

Firm Performance and Boardroom Gender Diversity: A Quantile Regression Approach

Abstract: We investigate the relation between firm performance and boardroom gender diversity using quantile regression methods. We explicitly test for heterogeneity in the performance impact of women on boards. Using data on over 2000 US firms in 2013 we show that board gender diversity has a positive effect on the conditional mean of firm performance measured by Tobin's Q. Critically, we demonstrate that the presence of women directors alters the dispersion of Tobin's Q. The quantile regressions show that female directors have a significantly larger positive impact in high-performing firms relative to low-performing firms. The board gender diversity effect is not homogeneous as assumed in previous research. This might help explain the mixed empirical findings in extant studies. Overall, our results suggest that boardroom gender diversity has an effect on both the conditional mean and the dispersion of firm performance.

How Does Social Media Impact Bitcoin Value? A Test of the Silent Majority Hypothesis

Abstract: Bitcoin’s emergence has the potential to pave the way for a technological revolution in financial markets. What determines its valuation is an important open question with far-reaching business and...

Expert Knowledge Elicitation: Subjective but Scientific

Abstract: Expert opinion and judgment enter into the practice of statistical inference and decision-making in numerous ways. Indeed, there is essentially no aspect of scientific investigation in which judgme...