مستوى التركز و أثره على أداء الصناعة : دراسة حالة صناعة خدمة الهاتف النقال في الجزائر خلال الفترة 2007-2018

الملخص EN

2017.

This study aims to determine the impact of the industry's level of focus on its performance by applying to the mobile service industry in Algeria during the period 2007-2018.

We have relied here on the descriptive analytical approach using case study technique, and the study concluded that the level of concentration of the mobile service industry in Algeria during the study period is high, meaning it is greater than 0.

25, and this greatly affected the performance of this industry, whether through the number of subscribers, which reached more than 47 million subscribers in 2018, or through the number of industry business, which reached its largest value in 2016, estimated at 349 One billion Algerian dinars, or through the net profits of the industry, which amounted to 104.

22 billion Algerian dinars in 2017.