1.   An Alcoa spokesman said costs generally rise when revenue increases.

2.   Budget costs would rise further, not fall.

3.   Costs can be rising in a natural monopoly industry.

4.   S., however, the practice flourishes, and as production costs rise, it shows no sign of abating.

5.   Their raw material and energy costs would rise, while being deprived of their previous government subsidies.

6.   Without such a preventive drive, the cost will rise dramatically with the growth of the very elderly population.

7.   Monthly costs can rise or fall unpredictably.

8.   Parry recommended a revision of the practices of the construction industry, and said that he expected insurance costs to rise.

9.   If a price rise were to discourage even a small proportion of buyers, then that basic cost would rise yet further.

10.   Because the poorer elderly spent such a large proportion of their income on fuel, she added, they would face stark choices if the cost rose.