This paper, with use of theory of maximizing utility and Micro data-the plan of sampling of household income-cost in 1376 and with the help log it and probate models, the characteristics of self-employment are studied. The result is that (probability) self-employment is increased with the level of income, age and the status marriage (married persons), status marriage (single) and the number of members of household.
The probability of self-employment is decreased with the increasing of studies.
Self-employment is more in the result than urban and is more between males than females.
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