En_finir_avec_la_competitivite.pdf (Objet application/pdf) La consommation collaborative. Central Place Theory - An Overview of Central Place Theory. Central place theory is a spatial theory in urban geography that attempts to explain the reasons behind the distribution patterns, size, and number of cities and towns around the world.
It also attempts to provide a framework by which those areas can be studied both for historic reasons and for the locational patterns of areas today. The theory was first developed by the German geographer Walter Christaller in 1933 after he began to recognize the economic relationships between cities and their hinterlands (areas farther away). He mainly tested the theory in Southern Germany and came to the conclusion that people gather together in cities to share goods and ideas and that they exist for purely economic reasons. Before testing his theory however, Christaller had to first define the central place. Wall Photos. Money Chart. RSA Animate - Crises of Capitalism.
Changer le monde. Le développement durable, une solution à la crise financière ? Le Monde.fr | • Mis à jour le | Par Alexis Tervuren, fonctionnaire La crise financière a t-elle tué le développement durable ?
L'enjeu écologique, l'un des thèmes de la campagne présidentielle de 2007, semble avoir disparu des écrans radars.