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Topic 1: Mobile-phone subscriptions From the bar chart given above, we can observe that mobile-phone subscriptions in developing and developed country experienced some changes during the past several year. The number of mobile-phone subscriptions in developing countries increased dramatically from less than 1 billion in 2000 to 4 billion in 2008. Taking a look at the statistics of mobile-phone subscriptions in developed countries, we can see that it ascended gradually from less than 1 billion in 2000 to the maximum at 1 billion in 2007, and then remained unchanged in 2008. The bar chart reveals that there exists difference in the development of mobile-phone subscriptions between developing and developed countries. What exactly contribute to this phenomenon? Reasons can be listed as follows: the authorities in developing countries have issued some preferential policies to protect and promote the development of the mobile-phone industry. Moreover, with the improvement of financial status and purchasing power, people in mounting numbers can afford to buy mobile-phones which was once deemed expensive. When it comes to developed countries, its slow growth can be best attributed to the market saturation: almost every one has owned mobile-phones, it is no need for them to buy a new one. By observing the trend in developed countries, we may forecast that the mobile-phone subscriptions will not continue to grow rapidly, as developing countries will meet the same problem of limited grow space. This is, obviously, the law of the market development. | 
