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Changes in data demand growth and availability of new technologies like LTE is having implications on the telecom industry's structure, competition and sources of competitive advantage. In addition, due to increasing competition, network operators are witnessing faltering profit margins. Service revenue growth is expected to be less than 1.2% up until 2014. In such harsh economic conditions, operators are now increasingly looking for innovative ways to increase operating profits, reduce their total cost of ownership and create shareholder value. In order to achieve the above objectives, many in the industry believe that operators should master the value discipline of "operational excellence" by embarking on a network sharing strategy.Network sharing is an approach where two or more competitor network operators share their network resources. The degree and method of sharing can vary from country to country depending on regulatory and competitive landscapes. Co-operation in the form of network sharing or infrastructure sharing brings a ray of hope for operators who want to continue to remain dominant market players. Sharing strategies work on game theory idea of identifying when the outcome of co-operation is actually better than the one of sustaining direct rivalry.The prime objectives of network sharing must not only be to realise Capex and OpEx savings but also to offer highest level of network quality to the customers of all sharing partners. Network sharing by no means should lead to deterioration of network quality. Only then can operators retain their customers and provide differentiated servicesOperators are aware that infrastructure sharing offers opportunity for product innovation and improved customer services. Around 70% of operators have used sharing to their advantage in forms such as site sharing, co-location and national roaming in the liberalised and emerging markets. However, advanced sharing concepts are now emerging and operators must take benefits of the new CapEx/OpEx saving opportunities.Our Research suggests that:For the majority of operators, network sharing will become a critical strategy to survive in the market. This will help them to expand 3G coverage and make utilisation of the OpEx savings in number of other areas such as LTE and IMS. By 2015, as many as 90% of operators across the globe will implement network sharing of some form.