"In a broadcast capacity, satellites are by far the most efficient infrastructure you can have," says Kidd. "But in point-to-point, a satellite does not have a lot of capacity; you have to spread the capacity cost over a smaller number of subscribers, making the services more expensive".
While there are many products on the market, based on different approaches, the identification of the most efficient solution for a specific infrastructure, and the optimal configuration is still an unsolved problem.
Nor are infrastructure projects the most efficient way of creating jobs and, by their nature, they have a limited life.
Among all the economic inputs, electricity, diesels and infrastructure were the most efficient components in supplying all the processes.
"One of the aims of this study is to find the most efficient way of working with the local infrastructure to recycle paint in an efficient way.
So for all the problems Brazil has with travel infrastructure, the fastest and most efficient solution in the short term is more flights".
Rainwater harvesting – one of the most efficient ways of reducing water demand and related infrastructure costs, according to Tamim Younos, president of Virginia's Cabell Brand Center – has gained popularity in recent years.
Payroll taxes kill jobs, and the CBO says that per dollar of budget expenditure, cutting them is the most efficient job creator -- much more efficient than infrastructure spending.
Mr Son argues that to guarantee fair access to this network and thus the most efficient use of it it should be run by an infrastructure firm hived off from NTT, owned jointly by all the telecoms operators.
Furthermore a hybrid governance structure requiring only limited regulatory adaptation seems to be the most efficient structure for facilitating investment in the corridor's infrastructure.
