%0 Journal Article
	%A M. Dachyar and  Yudavedito
	%D 2011
	%J International Journal of Economics and Management Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 57, 2011
	%T Portfolio Simulation in GSM Cellular Telecommunication Industry for Company's Decision and Policies Making
	%U https://publications.waset.org/pdf/5183
	%V 57
	%X The rising growth of the GSM cellular phone industry has tightening competition level between providers in making strategies enhancing the market shares in Indonesia. Tsel, as one of those companies, has to determine the proper strategy to sustain as well as improve the market share without reducing its operational income level. Portfolio simulation model is designed with a dynamic system approach. The result of this research is a recommendation to the company by optimizing its technological policies, services, and promotions. The tariff policies and the signal quality should not be the main focus because this company has had a large number of customers and a good infrastructural condition.

	%P 1141 - 1144