Resource provision ego-networks in small Greek construction firms

The prominence of small professional service providers in a fragmented construction sector in part relates to the ability to provide competitive advantage through the provision of a personalized service in a context where diseconomies of scale prevail. The Greek construction industry is particularly representative of this trend towards the dominance of small businesses. The small business owner relies upon their ability to secure critical resources through personal networks which provide information, advice, funding and brokerage. Resource provision ego-networks are investigated structurally using social network analysis. A multiple case study approach is employed with comparative social network analysis, focusing on the density of ego-networks and the prominence of resource providers and associated subgroups. Findings show that commercial development activity is promoted through high-density networks, which infers that higher levels of connectivity characterize networks operating in environments of uncertainty. As these critical resource networks mature, they appear to rely less on strong ties and temporary formal project networks. Contractual relationships appear to co-exist with reciprocal flows of resources outside the contract's scope. L'importance des petits prestataires de services professionnels dans un secteur du bâtiment qui est fragmenté tient pour partie à la capacité à assurer un avantage concurrentiel par la fourniture d'un service personnalisé dans un contexte où les déséconomies d'échelle prévalent. L'industrie grecque du bâtiment est particulièrement représentative de cette tendance à la dominance des petites entreprises. Le propriétaire d'une petite entreprise s'appuie sur sa capacité à garantir des ressources critiques par des réseaux personnels qui fournissent des informations, des conseils, du financement et des services de courtage. Les ego-réseaux prestataires de ressources sont examinés d'un point de vue structurel en utilisant une analyse des réseaux sociaux. Il est employé une approche basée sur une étude de cas multiples s'accompagnant d'une analyse comparative des réseaux sociaux, centrée sur la densité des ego-réseaux et sur l'importance des prestataires de ressources et des sous-groupes associés. Les résultats constatés montrent que la promotion des activités de développement commercial se fait par les réseaux haute densité, ce qui induit que des niveaux supérieurs de connectivité caractérisent les réseaux fonctionnant dans des contextes marqués par l'incertitude. Au fur et à mesure que ces réseaux de ressources critiques mûrissent, ils semblent moins s'appuyer sur des liens forts et des réseaux temporaires en rapport avec des projets formels. Il apparaît que les relations contractuelles coexistent avec des flux de ressources réciproques en dehors du champ du contrat. ego-réseaux ou réseaux personnels, activité entrepreneuriale, réseaux prestataires de ressources, PME du bâtiment, analyse des réseaux sociaux

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