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KMID : 1024820160040010001
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Journal of Korean Academy of Dental Administration
2016 Volume.4 No. 1 p.1 ~ p.14
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The comparison of the dental sales distribution in urban, rural and metropolitan areas
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Lee Chang-Hoon
Choi Hyung-Kil
Kim Myeng-Ki
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Abstract
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The purpose of this study was to compare the sales of primary dental clinic by its location and the distribution of sales among regional district. Data was collected from 2010 Korean National Economy Consensus. The sales and net income of dental clinics were extracted.
The clinics were divided by location. Two sorts of different level classification were applied. At first level, data were compared in 16 geographically large regions consist of metropolitans and provinces. At second level, data were compared in 251 small regions consist of metropolitans, urbans and rurals; 102 Gu(metropolitan), 63 Si(urban), 86 Gun(rural). To review the inequality of sales distribution, Gini coefficient and decile distribution ratio were calculated and compared.
At the level 16 geographic metropolitans and provinces, the result was not meaningful. However, analysis of classification at smaller areas shows the significant differences between areas. Average monthly sales of dental clinics were about 35.9 million won in Gu, 39.1 million won in Si, and 31.2 million won in Gun. Average net incomes of each dental clinic were 12.7 million won in Gu, 14.6 million won in Si, and 11.6 million won in Gun. With One-way ANOVA test and Tukey Post-hoc test, significant difference between groups could be observed. Among groups, Group Si has the highest average sales.
In terms of distribution indices, Group Gun has lowest Gini coefficient and highest decile distribution ratio, meaning small disparity of sales. With these findings, The policy maker could accomplish the distributional efficiency of dentists and the dentist who will open the clinic could choose the adequate region.
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KEYWORD
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Dental clinic, Sales, Income, Distribution, Gini coefficien, Decile distribution ratio
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