New start-up companies, which are considered to be a vital ingredient in a successful economy, have a different objective than established companies: They want to maximise their chance of long-term survival. We examine the implications for their operating decisions of this different criterion by considering an abstraction of the inventory problem faced by a start-up manufacturing company. The problem is modelled under two criteria as a Markov decision process; the characteristics of the optimal policies under the two criteria are compared. It is shown that although the start-up company should be more conservative in its component purchasing strategy than if it were a well-established company, it should not be too conservative. Nor is its strategy monotone in the amount of capital it has available. The models are extended to allow for interest on investment and inflation.Markov Decision Processes, Inventory, Start-up Firms

Despite the increasing citizen engagement with socio-political online communities, little is known about how such communities are affected by significant offline events. Thus, we investigate here the ways in which the collective identity of a far-right online community is affected by offline intergroup conflict. We examine over 14 years of online communication between members of Stormfront Downunder, the Australian sub-forum of the global white supremacist community Stormfront.org . We analyse members’ language use and discourse before and after significant intergroup conflict in 2015, culminating in local racist riots in Sydney, Australia. We found that the riots were associated with significant changes in the collective beliefs of the community (as captured by members’ most salient concerns and group norms), emotions and consensus within the community. Overall, the effects of the local riots were manifest in a reinvigorated sense of purpose for the far-right community with a stronger anti-Muslim agenda.

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