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Πλοήγηση Διδακτορικές διατριβές ανά Επιβλέπων "Xepapadeas, Anastasios"

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  • Μικρογραφία εικόνας
    Τεκμήριο
    Spatial externalities and agglomerations in spatiotemporal economics
    Tsangaris, Spyridon; Τσαγγάρης, Σπυρίδων; Athens University of Economics and Business, Department of Economics; Vlachou, Andriana; Yannacopoulos, Athanasios; Philippopoulos, Apostolis; Kyriakopoulou, Efthymia; Vasilatos, Evangelos; Economides, George; Xepapadeas, Anastasios
    Economic activity is distributed very unequally across regions and countries. This phenomenon is caused by variations of exogenous geographical characteristics and endogenous economic reasons. Although location is a central feature in the study of economic activity and economic growth, space is rarely considered an essential element of economic models, if it is even mentioned at all. The overall aim of this thesis is to contribute to the spatial economic theory and, specifically, to spatial growth theory. The thesis is structured as follows. Chapter 1 discusses the literature and describes the tools and methods to model spatial movements, and capture capital flows across space. Moreover, we present dynamic optimization methods in a spatial setting and specifically optimal control in space-time. Lastly, we present simplification that may deal with some issues that arise in models with forward-looking agents and a continuum of spatial domain.Chapter 2 presents an endogenous spatial growth model with forward-looking agents. Trying to identify the spatial misallocation of labor, we solve the market equilibrium and optimal allocations. The internalization of spatial interactions reveals distortions to the allocation of resources to R&D that have not been previously studied. Therefore, we claim that when the spatial dimension is not embedded in growth models, it may lead to regulatory inefficiencies.Chapter 3 builds a dynamic spatial endogenous growth model. We propose a methodology to analyze equilibrium allocation when locations can differ on initial productivity, amenities, and the population's initial level while agents are free to migrate. We present numerical examples to illustrate how labor mobility can affect economic growth and the level of amenities. Finally, we study migration restrictions' welfare impact.