The cost of electricity can also be a major factor in many countries as high costs to power networks are transmitted to consumers, raising the price they have to pay for Internet access. ( A national backbone network provide powerful links to connect different areas of the country. The number of submarine cables have increased in recent years, allowing faster and cheaper connectivity, thus incentivising greater Internet use. Still, there are many countries and areas with low connectivity, especially landlocked countries, which are dependent on their neighbours for international connectivity.