چکیده:
The paper examines industrial concentration in Iranian food products and beverages industries using firm level data aggregated to the 4-digit ISIC industry level between 2002 and 2004. Based on different concentration indices، the average level of concentration has increased slightly for the period of study. The empirical results show that increase in the level of concentration is more likely in industries that are more profitable. The results also show that initial capital requirement has positive and significant effect on the likelihood of changes in the level of concentration in the selected industries. Factors such as size، advertising intensity and R&D intensity do not have a significant effect on the probability of changes in concentration.
خلاصه ماشینی:
"The results also show that initial capital requirement has positive and significant effect on the likelihood of changes in the level of concentration in the selected industries.
Table(1) Food Products and Beverages Industries >CS< The advantage of using firm level data is the possibility to calculate a wide range of concentration indices.
We use concentrationratiosforfour(CR4)andeight(CRg)firms, Hannah Kay(HK), and Hirschman-Herfindahl(HHI)indices are used to illustrate the changes ofconcentration in thesel ectedindustri esTheseindicesof concentration have beencalculatedbasedonfirm's sale for all the 4-digit industries.
The(SCP)paradigm, emphasizes that a high minimum efficient scale creates entry barrier and leads the structure of market to higher level of concentration.
3. Empirical Results The model developed above is used in order to identify determinants of the likelihood of changes in industrial concentration in food products and beverage industries.
Table(5) >CS< p values in brackets So the result demonstrates the fact that initial capital requirement has positive and significant effect on the likelihood of an increase in the level of concentration in the selected industries.
It indicates that these factors do not have a significant effect on the likelihood of changes in the level of concentration in the selected industries.
3. 1 Policy implications Empirical results demonstrate the fact that profitability and initial capital requirement are the main determinants of the likelihood of increase in the level of concentration in Iranian food products and beverage industries.
Higher level of profitability leads the industries toward higher concentration that enable incumbent firms to enjoy more economies of scale."