But in the case of goods that change in quality every year, it is much harder to split an increase in nominal ouput or spending between a change in volume and a change in price.
On the export front, Scottish manufacturers recorded no month-on-month change in the volume of sales to international clients.
"We think it would be unlikely that there'd be a significant change in the volume of" self-insurance for small firms, said one official with the Department of Health and Human Services.
"This is the first time in this period of treatment and follow-up that there has been any change in plaque volume, " says Roger Newton , Esperion's president and chief executive.
These events caused a change in both the volume of coverage, which increased dramatically, and also in the stories.
Web analytics service Comscore lists Wizard101 as No. 8 among the top 10 gaining websites of unique visitors (by percentage change, not sheer volume) in the US in December 2010 compared to the previous month.
FORBES: Wizard101, The Harry Potter Of Online Games, Sees Growth
Computers then measure how a change in a vehicle's price, incentives or features will affect sales volume, where it's losing ground to competitors and, ultimately, profits.
Collin rightly identifies the accelerating volume of medical literature, and the rapid pace of change in medical best practices, as opportunities to derive value from large volumes of textual data.
These stocks saw a large surge in volume in mid October, which was the first technical sign that a change in trend was occurring.
We now add climate change on top of this, and we know that in Sub-Saharan Africa, or in the Indian subcontinent, the projections are that climate change will have such an impact on the volume of food and the quality of that food, that there'll be 50% decline in those areas in agriculture.
They kept the radio on in the first hours after the pub opened, but then chose to change to music at a low volume.
The council said that test-taker volume in April and May rose "quite significantly" in the lead-up to that change, compared with the previous year.
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