Following M. Jefferson`s opening discussion on the primate city in a national urban system, there have been long lasting concerns and debates on the pros and cons regarding the primacy phenomenon. From both theoretical and policy making perspectives s...
Following M. Jefferson`s opening discussion on the primate city in a national urban system, there have been long lasting concerns and debates on the pros and cons regarding the primacy phenomenon. From both theoretical and policy making perspectives studies have been conducted in many nations, in particular, of less developed world, where the high degree of primacy is prominent and often considered problematic. Among others, interest was centered on the relationship between the degree of primacy and the national economic efficiency. Despite the wide-ranging analyses of the primacy, however, there seems to remain a fundamental problem of measuring the degree of primacy in a national urban system. In this paper it is pointed out that often used primacy measures have flaws with them. Noting the deficiencies, a new primacy measurement scheme, based on both the population size distribution of cities and the locational interrelationships among them in a national urban system, is proposed and empirically tested. It is hoped that the use of the proposed approach with reference to spatial interactions among cities within an urban system can shed a light on the relationship between the degree of primacy and various forms of socio-economic changes in many countries.