More often than not, though, given the long-term nature of the contract, the projected benefits are realistic.

Given the long-term, cumulative nature of their work, it is surprising how many of the photographs here have been made since 1990.

Due to the long-term nature of the arrangement, the fees are usually raised during the concession period.

Another aspect of the economics is the long-term nature of the problem.

This is particularly important with respect to climate change, due to the long-term nature of the problem.

"Economic sanctions are by their very nature uncertain and long-term," he said.

He stressed the long-term nature of the effort and asserted a need for open-endedness in the American commitment.

Moreover the long-term nature of retirement, unlike most unemployment, means that poverty in old age is an enduring experience.

For Google, the long-term nature of the deal insulates it from spikes in energy prices.

The policy, which pushed the four executives down in the 1990 rankings, was meant to reflect the long-term nature of such incentives.