Ninoslava Savić and Zoran Radojičić
introduce a new way of division of the observed set of objects into risk groups of objects. At the same time, all calculations are performed according to the same rules defined in the model.
In general, when there are n types of digital divide, expressed by n appropriate sub‐indices, if e‐Government polarization index is labeled as EGPI, and sub‐indices as EGPIi, i = 1, n, the formula for EGPI calculation is as follows:
EGPI =,( 1) where the sub‐indices EGPIi are calculated according to the formula
where
EGPIi =, i = 1, n( 2)
Ki – total number of chosen indicators for sub‐index EGPIi, Xjmax – maximum measured value of indicator Xj, Xjmin – minimum measured value of indicator Xj.
6. Implementation of the model
The implementation of this general model is performed on the case of Serbia, with the aim of measuring the size and actual trends of digital divide in usage of e‐Government services within enterprises.
The following types of digital divide were considered, in relation to assessed reasons for them:
• digital divide caused by differences in the size of enterprises and
• digital divide caused by differences in the economic level of the locality of enterprises.
These two types of potential causes of digital divide were analyzed for the following groups of enterprises( Figure 4):
A. size of enterprises:
• small( 10 to 49 employers),
• medium( 50 to 249 employers),
• big( more than 250 employers),
B. locality of enterprises:
• Belgrade( the capital and the economy center of the country),
• Vojvodina( the north, more developed part of the country),
• Central Serbia( the south, less developed part of the country).
Figure 4: Groups of enterprises according to the potential causes of digital divide
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