@misc{KuebartStabler, author = {Kuebart, Andreas and Stabler, Martin}, title = {Infectious Diseases as Socio-Spatial Processes: The COVID-19 Outbreak In Germany}, series = {Tijdschrift voor economische en sociale geografie = Journal of economic and social geography}, volume = {111}, journal = {Tijdschrift voor economische en sociale geografie = Journal of economic and social geography}, number = {3}, issn = {1467-9663}, doi = {10.1111/tesg.12429}, pages = {482 -- 496}, abstract = {This paper argues that outbreaks of infectious diseases should be understood as socio-spatial processes with complex geographies. Considering the different dimensions of space through which an outbreak unfolds, facilitates analysing spatial diffusion of infectious disease in contemporary societies. We attempt to highlight four relevant dimensions of space by applying the TPSN framework to the case of the recent COVID-19 outbreak in Germany. By identifying key processes of disease diffusion in space, we can explain the spatial patterns of the COVID-19 outbreak in Germany, which did not feature the well-known patterns of spatially contagious as in or hierarchical diffusion. In contrast, we find superspreading events and especially relocation diffusion based on existing networks, on which the pathogen travelled like a blind passenger, to be more relevant. For us, these findings prove the value of combining relational thinking with geographic analysis for understanding epidemic outbreaks in contemporary societies.}, language = {en} } @misc{KuebartIbert, author = {Kuebart, Andreas and Ibert, Oliver}, title = {Beyond territorial conceptions of entrepreneurial ecosystems: The dynamic spatiality of knowledge brokering in seed accelerators}, series = {Zeitschrift f{\"u}r Wirtschaftsgeographie}, volume = {63}, journal = {Zeitschrift f{\"u}r Wirtschaftsgeographie}, number = {2-4}, issn = {2365-7693}, doi = {10.1515/zfw-2018-0012}, pages = {118 -- 133}, abstract = {In spatial terms, entrepreneurial ecosystems are mostly conceptualized as confined to a specific territory. At the same time, the growing relevance of entrepreneurship in digital fields is underlined. This paper argues that this is contradictory since territorial thinking underestimates the disruptive qualities of new entrepreneurial practices in the digital economy. Using process-based, qualita-tive case studies on seed accelerators from four regions: Amsterdam, Berlin, Detroit and Hamburg, this study seeks to explore knowledge brokering in entrepreneurship eco-systems and analyzes the corresponding spatial dynam-ics. Our findings imply that startups in digital fields share knowledge about business models and technologies in a way that is unattainable in classical knowledge clusters. Moreover, we show that most of the observed entrepre-neurial practices in seed accelerators crucially rely on extra-regional resources and thus remain only incom-pletely embedded into the respective regions. Against the background of these results, we suggest that entrepreneur-ial ecosystems should not be primarily viewed as territorial phenomena. Instead, we suggest that the territorial view on entrepreneurship ecosystems should be complemented with a topological view that foregrounds entrepreneurship as a trans-locally shared practice that is tangent to differ-ent regions in different ways.}, language = {en} } @misc{KuebartIbert, author = {Kuebart, Andreas and Ibert, Oliver}, title = {Choreographies of entrepreneurship. How different formats of co-presence are combined to facilitate knowledge creation in seed accelerator programs}, series = {Raumforschung und Raumordnung = Spatial Research and Planning}, volume = {78}, journal = {Raumforschung und Raumordnung = Spatial Research and Planning}, number = {1}, issn = {1869-4179}, pages = {35 -- 51}, abstract = {This paper explores different functions of co-presence for collaborative knowledge creation in the context of seed accelerator programs. Seed accelerators offer programs of three to six months to enhance the growth of early-stage start-ups through various means of training and organizational development. In this paper, seed accelerator programs are analysed as orchestrated sequences of different types of physical co-presence. By drawing on qualitative case study data, the paper identifies eight different ways in which physical co-presence is used during seed accelerator programs. Through these eight types of co-presence, the analysis reveals that physical co-presence unfolds unique social dynamics that are utilized in a carefully designed combination of presence and absence. It is shown that physical co-presence is a means to enact relational distance and to bridge this distance for the benefit of the entrepreneurial process. Therefore, this paper adds a new perspective on how co-presence is used to facilitate the generation of value through collaborative knowledge creation.}, language = {en} } @incollection{KuebartStabler, author = {Kuebart, Andreas and Stabler, Martin}, title = {Infektionsnetzwerke und Infektionsorte-Super-spreading-Ereignisse in der Epidemie}, series = {Corona-Netzwerke-Gesellschaft im Zeichen des Virus}, booktitle = {Corona-Netzwerke-Gesellschaft im Zeichen des Virus}, editor = {Stegbauer, Christian and Clemens, Iris}, edition = {1. Auflage}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-31394-4}, doi = {10.1007/978-3-658-31394-4_4}, pages = {35 -- 43}, abstract = {F{\"u}r die Analyse von Ausbr{\"u}chen von Infektionskrankheiten wie der neuartigen Coronaviruskrankheit COVID-19, die sich {\"u}ber Tr{\"o}pfchen, Aerosole oder Kontaktinfektion ausbreiten, bietet ein netzwerktheoretischer Ansatz einen besonderen Mehrwert, da eine Ansteckung von einer Person auf die andere notwendigerweise einen direkten Kontakt unter Kopr{\"a}senz impliziert und der Ausbruch im gr{\"o}ßeren Maßstab somit ein Netzwerkmuster aufweist. Neben dem f{\"u}r ein Infektionsgeschehen notwendigen Kontakt zwischen einem infekti{\"o}sen und einem infizierbaren Individuum gibt es mit dem Ort des Infektionsprozesses allerdings noch eine weitere Variable, die die Rahmenbedingungen bestimmt und von erheblicher Bedeutung sein kann.}, language = {de} } @misc{KuebartStabler, author = {Kuebart, Andreas and Stabler, Martin}, title = {Risikoprozesse statt Risikogebiete : Raumdimensionen der COVID-19-Pandemie in Deutschland}, series = {Informationen zur Raumentwicklung}, volume = {48}, journal = {Informationen zur Raumentwicklung}, number = {2}, pages = {40 -- 49}, language = {de} } @misc{KuebartStabler, author = {Kuebart, Andreas and Stabler, Martin}, title = {Waves in time, but not in space-An analysis of pandemic severity of COVID-19 in Germany based on spatio-temporal clustering}, series = {medRxiv}, journal = {medRxiv}, doi = {10.1101/2023.01.27.23285105}, pages = {1 -- 20}, language = {en} } @misc{KuebartStabler, author = {Kuebart, Andreas and Stabler, Martin}, title = {Waves in time, but not in space - an analysis of pandemic severity of COVID-19 in Germany}, series = {Spatial and spatio-temporal epidemiology}, volume = {47}, journal = {Spatial and spatio-temporal epidemiology}, issn = {1877-5845}, doi = {10.1016/j.sste.2023.100605}, pages = {1 -- 9}, abstract = {While pandemic waves are often studied on the national scale, they typically are not distributed evenly within countries. This study presents a novel approach to analyzing the spatial-temporal dynamics of the COVID-19 pandemic in Germany. By using a composite indicator of pandemic severity and subdividing the pandemic into fifteen phases, we were able to identify similar trajectories of pandemic severity among all German counties through hierarchical clustering. Our results show that the hotspots and cold spots of the first four waves were relatively stationary in space. This highlights the importance of examining pandemic waves on a regional scale to gain a more comprehensive understanding of their dynamics. By combining spatial autocorrelation and spatial-temporal clustering of time series, we were able to identify important patterns of regional anomalies, which can help target more effective public health interventions on a regional scale.}, language = {en} } @misc{Kuebart, author = {Kuebart, Andreas}, title = {Open creative labs as functional infrastructure for entrepreneurial ecosystems: Using sequence analysis to explore tempo-spatial trajectories of startups in Berlin}, series = {Research Policy}, volume = {51}, journal = {Research Policy}, number = {9}, issn = {1873-7625}, doi = {10.1016/j.respol.2021.104444}, language = {en} } @misc{StablerKuebart, author = {Stabler, Martin and Kuebart, Andreas}, title = {Tempo-spatial dynamics of COVID-19 in Germany: A phase model based on a pandemic severity indicator}, series = {medRxiv}, journal = {medRxiv}, doi = {10.1101/2023.02.17.23286084}, language = {en} } @misc{KuebartSantiniForrer, author = {Kuebart, Andreas and Santini, Erica and Forrer, Valentina}, title = {No islands of entrepreneurship : mapping the trans-local dimension of entrepreneurial ecosystems through networks of accelerator participation}, series = {Small business economics : an entrepreneurship journal}, journal = {Small business economics : an entrepreneurship journal}, publisher = {Springer Science + Business Media B.V}, issn = {1573-0913}, doi = {10.1007/s11187-025-01026-1}, pages = {1 -- 16}, abstract = {This paper explores the geography of entrepreneurial ecosystems (EEs) and provides a typology of how EEs are connected trans-locally. Although the literature has mainly focused on the place-specificities of EEs, there is limited research on the trans-local connections established by entrepreneurial support organizations (ESOs) that foster exogenous dynamics. Exploiting a longitudinal dataset of European startups participating in accelerator programs embedded within EEs, this study disentangles patterns of temporary relocation and maps the centrality of EEs through both network and cluster analysis. Our results support the notion of startups being locally embedded but also emphasize the flow of knowledge and resource exchange across different EEs. Eventually, the spatial network of temporary relocations highlights a mix of EE profiles, indicating that trans-local exchange through accelerator participation is the norm rather than the exception within EEs. This study contributes to a deeper understanding of the interconnectedness of EEs and the role of accelerators in facilitating and shaping trans-local entrepreneurial activities.}, language = {en} } @misc{LosackerKuebart, author = {Losacker, Sebastian and Kuebart, Andreas}, title = {Introducing sequence analysis to economic geography}, series = {Progress in economic geography}, volume = {2}, journal = {Progress in economic geography}, number = {1}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2949-6942}, doi = {10.1016/j.peg.2024.100012}, pages = {1 -- 8}, abstract = {In this short paper, we introduce sequence analysis methods to economic geography. Sequence analysis is a rich set of research methods that is widely used to analyze temporal variance in several disciplines in the social sciences, including sociology, demography and employment research. However, the toolbox of sequence methods has yet to gain significant attention among economic geographers. Sequence analysis methods can be used to analyze and understand patterns and structures of various phenomena over time. It employs mathematical and statistical techniques to study the sequential order, duration, and transitions between temporal conditions. We argue that sequence analysis holds great potential for advancing research in (evolutionary) economic geography. In the paper, we explain how to use sequence analysis, we ponder on empirical applications for research in economic geography, and we demonstrate its applicability in a use case. We also provide a reproducible R script and manual for the use case in the online appendix.}, language = {en} }