2013/08/31 by Zlatinka I. Dimitrova, Dimitrova, Z. I., Marcel Ausloos +1 · 1 citation
Economics, Econometrics and Finance · #Adaptation and Self-Organizing Systems (nlin.AO) #Complex Systems and Time Series Analysis #FOS: Physical sciences #Physics and Society (physics.soc-ph)
paper · pdf · doi:10.48550/arxiv.1309.0079
openalex publication_date 2013/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the primacy in the Bulgarian urban system. Two groups of cities are studied: (i) the whole Bulgaria city system that contains about 250 cities and is studied in the time interval between 2004 and 2011; and (ii) A system of 33 cities, studied over the time interval 1887 till 2010. For these cities the 1946 population was over 10 000 inhabitants. The notion of primacy in the two systems of cities is studied first from the global primacy index of Sheppard [1]. Several (new) additional indices are introduced in order to compensate defects in the Sheppard index. Numerical illustrations are illuminating through the so called "length ratio".