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Does Zipf's law hold for Polish cities?

100%

Cieślik A. , Teresiński J.

Miscellanea Geographica. Regional Studies on Development

2016

tom 20

nr 4

5-10

In this paper we study Zipf's law, which postulates that the product of a city's population and its rank (the number of cities with a larger or equal population) is constant for every city in a given region. We show that the empirical literature indicates that the law may not always hold, although its general form, the rank-size rule, could be a good first approximation of city size distribution. We perform our own empirical analysis of the distribution of the population of polish cities on the largest possible sample to find that Zipf's law is rejected for poland as the city sizes are less evenly distributed than it predicts.

Reconsidering Zipf's law for regional development: The case of settlements and cities in Croatia

88%

Josic H. , Bašić M.

nr 1

Zipf's law is a striking regularity in the field of urban economics that states that the sizes of cities should follow the rank-size distribution. Rank-size distribution, or the rank-size rule, is a commonly observed statistical relationship between the population size and population rank of a nations' cities. The goal of this paper is to test Zipf's law as applied to data for settlements and cities in Croatia using the Census of Population Survey for the year 2011. The results of the analysis have shown that Zipf's law for settlements in Croatia holds true for the majority of the settlement sizes. However, the rank-size distribution does not hold true for extremely small and extremely large settlement sizes. When city proper and urban agglomeration of 127 Croatian cities were examined, Zipf's law was found to hold true only for urban agglomerations. The results of the study are discussed in terms of regional development.

The Hierarchy and Relationships Between Towns in Lubuskie Province

63%

Szczuciński P.

nr nr 35

39-49

Ukształtowany na terytorium regionu system osadniczy stanowi w geografii społecznoekonomicznej jeden z głównych czynników rozwoju. Szczególną rolę w systemie tym odgrywają miasta, których znaczenie rozpatrywać można z różnych perspektyw. W artykule z perspektywy przestrzennej badaniom poddano hierarchię i relacje miast w województwie lubuskim. Spośród narzędzi statystycznych wykorzystano regułę wielkości i kolejności Zipfa oraz model grawitacji. Analizę przeprowadzono na podstawie danych za rok 2015. Wyniki badań empirycznych wskazują, że pomimo podobnego zagęszczenia miast w województwie lubuskim jak ogólnie w kraju system miast w regionie charakteryzuje wyraźna specyfika. Obok dwóch największych miast pełniących funkcje regionalne i ponadregionalne, którymi są Zielona Góra i Gorzów Wlkp., duże znaczenie ma problematyka funkcjonowania małych i średnich miast w województwie.(abstrakt oryginalny)

In socio-economic geography any regional settlement system makes one of its major factors of development. It is towns that play a specific role in this system, the meaning of which can be approached from different perspectives. This paper focuses on the hierarchies and relationships between towns in the Province of Lubuskie seen from the spatial point of view. The volume and sequence rule of Zipf 's law as well as the gravitation model have been used as the statistical tools. The data valid as in 2015 were accounted for in the analysis. Results from the empirical studies show that despite a similar urban density in Lubuskie Province and generally across Poland, the town system in the region is visibly specific. Apart from two largest cities playing a regional and cross-regional function, i.e. Zielona Góra and Gorzów Wlkp., the issue of how small and middle-sized towns function in the province comes to the fore.(original abstract)