1,721,085 research outputs found
History-Friendly Modeling: An Evolutionary Tool for Strategy Research
Full text linkHistory-friendly models have been increasingly adopted to study innovation and industry evolution, the catch-up of latecomer firms and countries, and public policies. However, they have been used less in the field of strategic management. In this article, we first provide a review of the history-friendly literature, identifying its intellectual roots in evolutionary economics. Then, we discuss three possible motivations that could explain the history-friendly paradox. Finally, we propose history-friendly models as a promising tool to study current research questions in strategy
Neutrino propagation in a medium with a magnetic field
No full textWe study the properties of neutrinos propagating in an isotropic magnetized medium in the two physical approximations of degenerate Fermi gas and classical plasma. The dispersion relation shows that, for peculiar configurations of the magnetic field, neutrinos can propagate freely as in vacuum, also for very large density; this result can be very important in the study of supernova evolution. For mixed neutrinos, the presence of a magnetic field can alter significatively MSW oscillations, and for particular configurations of the field the resonance condition no longer occurs. Furthermore, on the contrary to that happens in non-magnetized media, spatial dispersion arises and neutrino trajectory can be in principle deviated; however a simple estimate shows that this deviation is not detectable
Spinoffs and parents in clusters: evidence from the Italian motorcycle industry
Full text linkIn this paper, we study the relation between parenting events and the performance of firms. Using data from the Italian motorcycle industry (1893–1993), we find that parents have higher survival chances after generating a spinoff (i.e. parenting event), confirming results from previous studies about other manufacturing industries. We also show that the survival patterns of parent firms differ across space, and we link them to cluster characteristics: parenting events are associated to survival advantages in the clusters of Milan and the Motorvalley, and to survival disadvantages in the cluster of Turin. The paper contributes to the literature on spinoffs and employee mobility and adds to the debate on the role of clusters and their institutions in evolutionary economic geography, by highlighting the importance of contextual factors for the performance of parent firms
The physiological menopause: an aging process from the ovaries to the skin through the psyche
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Influence of surrounding trees on populations of Phytoseiid mites (Acarina, Phytoseiidae) in a vineyard of the Lazio region (Central Italy)
No full textInfluence of surrounding trees on populations of Phytoseiid mites (Acarina, Phytoseiidae) in a vineyard of the Lazio region (Central Italy)
No full textAre switching costs always effective in creating first-mover advantage? the moderating role of demand and technological regimes
No full textThis paper presents a simulation model of industry evolution in which demand regimes and technological regimes shape the relationship between consumers switching costs and first-mover advantage. Our results show that the extent to which switching costs can be an effective mechanism in generating first-mover advantage depends on demand regimes: switching costs have a very strong impact when demand is homogeneous, and a much weaker one when demand is fragmented. The dimensions of demand regimes contribute differently to this outcome: horizontal fragmentation affects the structure of the industry, vertical fragmentation works at the firm level. Finally, the dimensions of technological regimes do not matter when demand is homogeneous; in the opposite case, they are the key determinants of the existence of advantages for early movers. (C) 2013 Elsevier Ltd. All rights reserved
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