"Räumlicher Preiswettbewerb im Treibstoffeinzelhandel: Eine räumlich-ökonometrische Analyse"
, SVH - Südwestdeutscher Verlag für Hochschulschriften, Wien, 2009, ISBN: 978-3-8381-0786-8
Räumlicher Preiswettbewerb im Treibstoffeinzelhandel: Eine räumlich-ökonometrische Analyse
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In an empirical analysis, this dissertation investigates strategic interaction in the retail gasoline sector. This sector is characterized by a small number of large chains controlling many retail outlets, as well as a substantial number of independent gas stations. Using spatial econometric techniques I investigate (a) the influence of independent stations on the prices charged by branded gasoline stations and (b) the impact of the spatial distribution of gas stations on prices. Independent stations could heighten price competition, as they charge significantly lower prices. At the same time, as consumers might consider gasoline sold at unbranded stations to be inferior, they could also reduce price competition for branded stations. I find evidence for both effects, and independents therefore ultimately have only a small influence on the prices charged by branded stations. Furthermore the dissertation investigates whether prices are influenced by the degree of spatial differentiation of the location of rivalling gasoline stations and by spatial concentration ('spatial clustering') of gasoline stations of the same chain. Spatial differentiation is measured by the average distance to the nearest rivals, and spatial concentration denotes the size of the spatial clusters of stations that belong to the same chain (brand). In an extension to theoretical models on spatial competition inspired by Salop's (1979) seminal paper it can be shown, that both spatial differentiation and spatial concentration increase equilibrium prices. The findings of the theoretical part are supported by the empirical analysis.
Sprache der Kurzfassung:
SVH - Südwestdeutscher Verlag für Hochschulschriften