Data on the economic impact of constructing Naypyidaw are scarce but the national economic impact of the huge construction effort must have been very considerable. One estimate puts the cost in the range of $3–4 billion although only part of this estimate is for cash spending because non-cash investments were also reportedly involved in supporting the construction effort. There must have been a large localized construction boom, the result of which is that a vast new economic asset has been created. On the other hand, utilization (mid 2014) of the vast new asset is very low. Most of the remarkable main roads in the city (10 lane roadways are common) are ghost roads for much of the time. There are also large areas of vacant land between many buildings.