Analysis of Multi-SIM Behaviour in Tanzania ' s Telecom Market Using Binary Logit Model

Abstract

This paper examines factors for multi-SIMs usage in the mobile services, and itseconomic implications to mobile operators in Tanzania. A random sample of 288mobile phones subscribers from six mobile operators were included in the study.The study used binary logit model to estimate drivers for multi-SIMs usage, withmarginal effects calculated to indicate appropriately the probabilities of usage forindividual parameters used in the model. The findings showed that differences inperceiving quality of services and product differentiation are the main drivers formulti-SIMs usage. Multi-SIMs users are satisfied with multiple operators as no oneoperator provides a combination of their communication needs successfully. Also,customer-care related reasons like inaccessibility of sim swap raises customer ' sSIM multiplicity. The behaviour of customers to own multiple SIM cards increasesthe level of customer spending to multiple operators and reduces customer ' sprofitability. This demands that network managements improve network quality,promotional activity, and customer care to win customers ' share of usage.