Industrial Symbiosis Networks (ISNs) consist of firms that exchange residual materials and energy locally, in order to gain economic, environmental and/or social advantages. In practice, ISNs regularly fail when partners leave and the recovery of residual streams ends. Regarding the current societal need for a shift towards sustainability, it is undesirable that ISNs should fail. Failures of ISNs may be caused by actor behaviour that leads to unanticipated economic losses. In this paper, we explore the effect of these behaviours on ISN robustness by using an agent-based model (ABM). The constructed model is based on insights from both literature and participatory modelling in three real-world cases. It simulates the implementation of synergies for local waste exchange and compost production. The Theory of Planned Behaviour (TPB) was used to model agent behaviour in time-dependent bilateral negotiations and synergy evaluation processes. We explored model behaviour with and without TPB logic across a range of possible TPB input variables. The simulation results show how the modelled planned behaviour affects the cash flow outcomes of the social agents and the robustness of the network. The study contributes to the theoretical development of industrial symbiosis research by providing a quantitative model of all ISN implementation stages, in which various behavioural patterns of entrepreneurs are included. It also contributes to practice by offering insights on how network dynamics and robustness outcomes are not only related to context and ISN design, but also to actor behaviour.
Previous bankruptcy is often seen as sign of poor entrepreneurial skills but few have examined whether renascent entrepreneurs actually perform worse or better upon reentering and how performance differences might be explained. Using a sample of 1,745 Dutch SMEs firms of which 67 were managed by renascent entrepreneurs this study examines potential differences in performance between renascent and other firms and explores to what extent this can be attributed to effects of the bankruptcy involvement on embeddedness, innovativeness, ambition and financial discipline. Non-parametric and multiple mediation analyses were conducted to test a set of hypotheses. Renascent entrepreneurs were found to show better sales level and were more innovative but also indicate more negative growth rates. Further, they show less financial discipline, but do not differ in their overall embeddedness and ambition levels. These mixed findings suggest that previous bankruptcy involvement is not necessarily a clear admission of failure.
In this study, we address the function of role models for entrepreneurship students. By using entrepreneurs as role models, students can get a better and realistic picture of the complexity of the entrepreneurial path. Choosing whom to interview as role model can be diverse, but it can be problematic if, as a result of that choice, the learning effect in the same group of students is different.
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