Using firm-level data of manufacturing sector during the period 1989-2010, this thesis explored the export behavior of firms in Turkey. Up to date, Turkey&rsquo / s export performance has been analyzed from macro perspective extensively. However, far too little attention has been paid to firm-level analysis contrary to ongoing and growing empirical literature. The preliminary analysis revealed the superiority of exporting firms. Both self-selection and learning-by-exporting are found to be valid explanation for the source of this observed export premium. Dynamic discrete choice model results provide supportive evidences for the existence of sunk-costs. Besides, it is observed that sunk-costs varied during the crises. Sunk-costs not only shape export decision but also affect timing decision. The exit and entry dynamics of the firms has been studied using duration analysis. Results showed self-selection of less profitable firms into export markets and importance of non-price competition for the survival of exporters. Impact of crises on export behavior has been examined by regarding extensive and intensive margins of exports separately. The findings implied that for 1994 crisis increase in extensive margins, for the case of 2001 crisis increase in intensive margin and for 2008 crisis decline both in extensive and intensive margins of exports dominated. This thesis makes several noteworthy contributions to the existing literature. First, it contributed to the ongoing and growing empirical literature using Turkish data. Secondly, unlike, existing studies that investigate single feature of the export behavior, in this thesis, using different approaches the issue has been analyzed extensively. Moreover, using advantage of the data set and Turkish economy, the impact of different types of crisis on export behavior has been analyzed and contributed to the literature that studies the impact of shocks on export behavior.

La théorie des ressources affirme que les avantages concurrentiels résident dans la mobilisation des actifs précieux qui sont difficiles à imiter. L'Approche du Capital Immatériel (ACI) prolonge cet argument en étudiant ces ressources; plus particulièrement celles qui sont fondées sur la connaissance et qui peuvent être classifiées dans l'une des catégories suivantes: Capital Humain, Capital Structurel, ou Capital Relationnel.Cette thèse cherche à évaluer l'ACI en tant que cadre pour rechercher les conditions favorables permettant aux entreprises d'innover en créant des nouveaux biens et services (produits). Spécifiquement, ce projet doctoral vise à analyser les rôles de chaque type de capital immatériel dans l'innovation de produits. Fondée sur des données européennes, cette thèse examine différents types d'entreprises (nouvelles, petites et moyennes entreprises, et grandes entreprises) et les secteurs d'activités (y compris l'industrie et les services). Le Chapitre 1 examine le capital humain et d'autres déterminants du taux de création d'entreprises dans les villes européennes. Ensuite, le Chapitre 2 examine l'impact de la diffusion des connaissances sur la façon dont l'investissement en R&D interne apporte à l'innovation de produits. Puis, le Chapitre 3 utilise le concept de capacité d'absorption pour explorer comment les similarités des actifs immatériels entre les entreprises sont associées à la performance de leur capital relationnel.En général, ce projet doctoral souligne que l'ACI fournit un cadre propice pour formuler et vérifier des hypothèses concernant les moteurs de l'innovation de produits. Il permet de mener des études portant sur la façon dont les entreprises mobilisent leurs actifs immatériels afin de développer et commercialiser de nouveaux produits. Par ailleurs, cette approche facilite l'interprétation des résultats afin de recommander des décisions managériales et des politiques publiques visant à articuler davantage les pratiques des entreprises. / The resource-based view of the firm argues that competitive advantages lie in the use of valuable resources that are difficult to emulate. The intellectual capital-based view (ICV) extends this argument by studying such resources; particularly intangible (or knowledge) assets that may be classified in three main components: human, structural, and relational capital.This thesis aims to evaluate the ICV as a framework for understanding the favorable conditions that allow firms to innovate by creating new goods and services (i.e., products). Specifically, this thesis seeks to analyze the specific roles of each capital capital component in product innovation. Using European data, it covers an ample range of firm types (i.e, nascent firms, small and medium-sized enterprises, and large firms) and business sectors (including manufacturing and services). Chapter 1 investigates human capital and other determinants of business creation as a measure of entrepreneurship in European cities. Chapter 2 examines the impact of knowledge spillovers on in-house R&D investment and innovation performance in firms. Chapter 3 leverages the concept of absorptive capacity to explore whether similar configurations of IC are associated with the performance of relational capital in companies.Overall, this dissertation finds that the ICV provides a fertile ground to formulate and test hypotheses concerning the drivers of product innovation. It allows to focus research on how companies mobilize intangible assets in order to develop and commercialize new goods and services. Furthermore, this approach provides several lessons for managers and policy recommendations that may help to articulate corporate practices.