Robert J. Breitenecker

Towards a Comprehensive Understanding of Lead Userness: The Search for Individual Creativity

In innovation research the identification of lead users has attracted considerable research effort. While lead user research has made important advances, there is still a significant lack in terms of understanding antecedents to lead userness. Therefore the aim of this paper is to offer a framework which is rooted in creativity psychology in order to provide a more comprehensive understanding of who leading‐edge users are. It will allow for a systematic investigation and detection of innovative users. We conducted an empirical study in the field of small kitchen appliances in co‐operation with Philips Consumer Lifestyle, a field which lacks some of the typical characteristics that have been emphasized in markets traditionally studied in lead user research. With our research we show that (1) lead userness is fundamentally linked to individual creativity; (2) particularly creativity‐ and domain‐relevant skills (cognitive style, product knowledge and use experience) are related to lead userness; (3) creativity‐relevant skills can be explained by personal characteristics, such as education, gender and openness to experience.

A Biopsychosocial Model of Interferon-Alpha-Induced Depression in Patients with Chronic Hepatitis C Infection

Background: The aim of this prospective study was to gain a more comprehensive picture of the biopsychosocial effects of interferon-α (IFN-α) treatment of patients with chronic hepatitis C (HCV). The predictors of depressive development and changes in health-related quality of life, life satisfaction and cognitive ability were measured with the inclusion of the social context. Furthermore, the effects of IFN-α treatment on indoleamine 2,3-dioxygenase, the level of tryptophan supply in the brain, the development of neurotoxic kynurenine metabolites and the thyroid glands were investigated. Therefore, for the first time the conditions for the development of depressive episodes in HCV patients treated with IFN-α were examined over the entire period of treatment as well as 3 months later, applying a holistic biopsychosocial model. Method: Psychiatric and biological assessments were carried out at 6 different times: before, during (at 1, 3, 6 and 9 months) and after the end of IFN-α treatment. Results: During IFN-α treatment 22 (53.7%) of 41 patients fulfilled the criteria for a treatment-related depressive disorder at least once during treatment. Contributing factors are tryptophan depletion (tryptophan to competing amino acids quotient), increased neurotoxic challenge (kynurenine to kynurenic acid quotient), less social support, female gender, preexisting psychiatric vulnerability, means of transmission, low financial security, impaired sexual satisfaction, small circle of friends, impaired physical role, strong body pain, low general health and vitality, reduced social functioning, impaired mental health and impaired emotional role. Conclusions: The awareness of relevant risk factors of IFN-α treatment-induced depression is essential to develop preventative treatment strategies.

Dealing with spatial heterogeneity in entrepreneurship research

In quantitative research, analyses are generally made using a geographically defined population as the study area. In this context, the relationships between predictor and response variables can differ within the study area, a feature that is known as spatial heterogeneity. Without analyzing spatial heterogeneity, a global model may not be correct, and there may be unclear spatial boundaries in the generalizability of the findings. The authors discuss how the method of geographically weighted regression (GWR) can be used to identify the study area, and illustrate the utility of GWR for empirical analyses in entrepreneurship research. Future entrepreneurship research can benefit from analyzing whether conflicting evidence may be due to spatial heterogeneity and from applying GWR in an exploratory way.

Quinolinic Acid Responses during Interferon-α-Induced Depressive Symptomatology in Patients with Chronic Hepatitis C Infection - A Novel Aspect for Depression and Inflammatory Hypothesis.

Background The aim of this exploratory study is to gain for the first time a more comprehensive picture of the impact of changes of quinolinic acid concentrations on depressive symptomatology during and after IFN-α therapy. Methods The quinolinic acid concentrations of 35 HCV patients are examined in a prospective survey over the entire period of IFN-α treatment as well as three months later at six different times (baseline, one, three, six and nine months after the beginning of IFN-α treatment, and after the end of treatment). Results During IFN-α treatment Hamilton Depression Rating Scale scores rise significantly. At the same time there is greater activity of indoleamine 2,3-dioxygenase, with a resulting increase in plasma kynurenine concentrations. Compared to baseline values quinolinic acid concentrations increase significantly during therapy, reflecting an increased neurotoxic challenge. In addition, patients with higher scores in the Hamilton Depression Rating Scale at six and nine months after starting therapy show significantly higher levels of quinolinic acid concentration. Conclusions The increase of quinolinic acid during IFN-α therapy might contribute to depressive symptomatology through the neurotoxic challenge caused by quinolinic acid. Subsequently, our exploratory study results support the inflammatory hypothesis of depression. The awareness of relevant risk factors of IFN-α treatment-induced depression is essential to develop preventative treatment strategies.

Entrepreneurial team locus of control: diversity and trust

Purpose – The purpose of this paper is to examine how internal locus of control (LOC) as a well-established entrepreneurial personality trait at team level impacts team performance (effectiveness and efficiency) in Austria. In addition, it investigates the interaction effects of LOC diversity and affective trust on the internal LOC-performance relationship. Design/methodology/approach – Data originated from 44 entrepreneurial teams based in nine business incubators in Austria. Partial least squares (PLS) structural equation modelling was used to estimate the model. Findings – Results indicate that higher internal LOC at team level promotes entrepreneurial team effectiveness and efficiency. However, team efficiency is increased when such teams possess a high internal LOC and low LOC diversity. Affective trust is identified as a crucial component in enhancing entrepreneurial team effectiveness, especially when the team has a high internal LOC. Originality/value – This study extends research on internal LOC ...

Adding fuel to the fire

Purpose – The purpose of this paper is to examine how diversity in need for achievement (nfA) a well-established entrepreneurial personality trait impacts team performance (effectiveness and efficiency) in Austria. In addition, it investigates the interaction effects of Team Mean nfA and relationship conflicts on the nfA diversity-performance relationship. Design/methodology/approach – Data originated from 44 entrepreneurial teams based in nine business incubators in Austria. Partial least squares structural equation modelling was used to estimate the model. Findings – Results indicate that, in general, nfA diversity has a negative impact on entrepreneurial team effectiveness and efficiency. However, acknowledging the importance of nfA for being entrepreneurial, diversity in nfA could improve team effectiveness when the prevailing team nfA (mean) is low. The dysfunctional role of relationship conflicts for entrepreneurial team performance is confirmed; nonetheless, similarity in nfA could help teams to co...

Innovative Entrepreneurial Teams: The Give and Take of Trust and Conflict

Entrepreneurship research lacks empirical evidence about interactions between entrepreneurial team members. This paper examines the role of trust (cognitive and affective) and conflict (task and relationship) on team performance (effectiveness and efficiency) of innovative entrepreneurial teams. Data originated from 88 incubator‐based entrepreneurial teams in Austria. Results indicate that cognitive trust is the cornerstone of innovative entrepreneurial team performance. To maximize efficiency, such teams would rely on high cognitive trust and low task conflict. Nonetheless, the guidelines for being effective centre around high cognitive trust coupled with low task and relationship conflict.

Linking the cultural capital of the entrepreneur and early performance of new ventures: A cross-country comparison*

We explore the impact of an entrepreneur’s cultural capital on the performance of new ventures in both mature and transition economies. Results show that individualistic values of the founder influence early performance of new ventures, irrespective of the country context; and that in less advanced transition economies, the entrepreneur’s cultural-background profile has a stronger influence on new venture performance than education or industry experience. Our findings support the assumption that entrepreneurial performance in new ventures is culture-driven, and suggest that economic analyses of entrepreneurial actions should encompass cultural values as well.

When the difference makes a difference – the regional embeddedness of entrepreneurship

Abstract Regional determinants of new firm formation are of interest to researchers and policymakers. In the analysis of new firm formation, most studies use econometric approaches that mask intra-unit variations, not recognizing counterbalancing and dilution effects as a result. Recent advances in spatial statistics such as Geographically Weighted Regression (GWR) take local variations into account. However, these approaches operate only on a bivariate level, making it impossible to detect the homogenous parts of the area under examination with regard to a number of relationships between new firm formation and its determinants. Based on a sample of 412 German regions, we apply GWR and subsequent graph-partitioning clustering to identify multi-relationally homogeneous sub-areas. Being that the results suggest a four-cluster solution, ‘one size fits all’ policies and premature unit zoning can be called into question.

The influence of team heterogeneity on team processes of multi-person ventures: an empirical analysis of highly innovative academic start-ups

In current publications on start ups founded by more than one person contradictory and inconsistent results are presented regarding the outcome of team heterogeneity on venture performance. This can be traced back to the inconsistent measurement of team heterogeneity. Harrison and Klein (2007) present a theoretical concept, which divides heterogeneity into three forms: separation, variety and disparity. The aim of this paper is to test empirically this theoretical concept. We analyse the influence of the three introduced types of heterogeneity on team processes which further correlate with venture performance and show that different types of heterogeneity influence team processes in different ways. By doing this, we apply multi-level models to consider the level structure of our data. The data consists of 59 technology orientated academic start-ups from Austria, supported by academic incubator programmes.