Search results for "COMPETITION"
showing 10 items of 1409 documents
Chamberlin, Edward Hastings
2016
The entry describes the life and analytical contributions of the US economist Edward Chamberlin (1899 -1967). It reconstructs the development of Chamberlin's thought on the issue of monopolistic competition and compares it with the Economics of Imperfect Competition by Joan Robinson.
Competition
2016
The essay provides a rational reconstruction and a critical assessment the different notions of competition elaborated in the course of the history of economic thought. In particular, it focuses on i) Competition as Rivarly in a Race; ii) Competition as a Specific Market Structure; iii) Competition as a Discovery Procedure and, finally, iv) Competition as Class Struggle. Moreover, it briefly discusses some issues concerning competition policy.
Paolo Sylos Labini Vindicated
2017
In the first part of our chapter we critically discuss i) Modigliani’s 1958 interpretation of Sylos Labini’s Oligopolio e Progresso Tecnico (1957), ii) the following debate concerning the Sylos Postulate −the assumption according to which “potential entrants behave as though they expected existing firms to adopt the policy most unfavourable to them, namely, the policy of maintaining output while reducing the price (or accepting reductions) to the extent required to enforce such an output policy” − and iii) the incumbent’s choice of productive capacity to install as strategic entry deterrence. In the second part of the chapter we develop a model in which, as in Dixit (1980), there are three …
The Role of Business Plan Competitions in the Processes of Defining and Launching a New Venture. Cases of Companies Involved in the ‘StartCup’ Palerm…
2015
Sperm competition and small size advantage for males of the golden orb-web spider Nephila edulis
2000
Sexual selection, through female choice and/or male‐male competition, has influenced the nature and direction of sexual size dimorphism in numerous species. However, few studies have examined the influence of sperm competition on size dimorphism. The orb-web spider Nephila edulis has a polygamous mating system and extreme size dimorphism. Additionally, the frequency distribution of male body size is extremely skewed with most males being small and few large. The duration of copulation, male size and sexual cannibalism have been identified as the significant factors determining patterns of sperm precedence in spiders. In double mating trials, females were assigned to three treatments: either…
Il contributo degli architetti siciliani ai concorsi per le nuove chiese italiane della CEI
2015
Il saggio analizza il contributo degli architetti siciliani ai concorsi per le nuove chiese italiane della CEI. Nell’ambito di tale lunga esperienza promossa dalla CEI, il contributo degli architetti siciliani alla realizzazione delle nuove chiese italiane appare particolarmente significativo e si distingue per una costante presenza in tutti i concorsi e per la qualità dei risultati raggiunti attraverso l’esplorazione di temi progettuali tutti interni al processo di rinnovamento liturgico e rituale. Pasquale Culotta e Giuseppe (Bibi) Leone sono i primi a esordire nell’iniziale concorso indetto nel 1998 con il progetto per la parrocchia di San Giovan Battista in Lecce. L’anno successivo, Vin…
Performance Analysis of Cooperative V2V and V2I Communications Under Correlated Fading
2019
Cooperative vehicular networks will play a vital role in the coming years to implement various intelligent transportation-related applications. Both vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications will be needed to reliably disseminate information in a vehicular network. In this regard, a roadside unit (RSU) equipped with multiple antennas can improve the network capacity. While the traditional approaches assume antennas to experience independent fading, we consider a more practical uplink scenario where antennas at the RSU experience correlated fading. In particular, we evaluate the packet error probability for two renowned antenna correlation models, i.e., cons…
Hybridization studies inSilene subgen.Petrocoptis (Caryophyllaceae)
2006
Silene subgenusPetrocoptis comprises sexual diploid taxa and it is restricted to calcareous cliffs in the Iberian peninsula. Artificial crosses involvingSilene pyrenaica (Bergeret)Mayol etRossello (≡Petrocoptis pyrenaica (Bergeret)Walp.),Silene laxipruinosa Mayol etRossello andS. montserratii subsp.crassifolia (Rouy)Mayol etRossello (≡P. crassifolia Rouy) were attempted to assess the extent of barriers developed within the subgenusPetrocoptis. Usually, intraspecific crosses involving allopatric populations were successful, suggesting that geographically isolated populations are not genetically isolated. Cross-compatibility was noted among the polymorphicS. pyrenaica, which developed fertile…
On the Location and 'Lock-In' of Cities: Geography vs. Transportation Technology
2004
We investigate where cities are located in a spatial economy and why they tend to get 'locked-in' at particular sites. Building on Fujita and Krugman (1995) we show that geography and/or transportation technology must exhibit some 'non-smoothness' for cities to possibly become 'locked-in' in location space. Our results establish that no asymmetric monocentric equilibrium can be generically sustained when space is homogenous and transportation technologies are 'smooth', whereas it can in the presence of transportation hubs and/or concave transport cost functions. This suggests that cities are drawn to transportation hubs during the early stages of economic development, whereas they can be su…
Switching spatial scale reveals dominance-dependent social foraging tactics in a wild primate.
2017
When foraging in a social group, individuals are faced with the choice of sampling their environment directly or exploiting the discoveries of others. The evolutionary dynamics of this trade-off have been explored mathematically through the producer-scrounger game, which has highlighted socially exploitative behaviours as a major potential cost of group living. However, our understanding of the tight interplay that can exist between social dominance and scrounging behaviour is limited. To date, only two theoretical studies have explored this relationship systematically, demonstrating that because scrounging requires joining a competitor at a resource, it should become exclusive to high-rank…