Research the causes of related medical symptoms such as: 1  Mouth. 2  Mouth symptoms (6864 causes). 3  Mouth disease. 4  Mouth disorder. 5  Mouth pain (142 causes). 6  Ulcers (28 causes).
The most important measure of economic activity in a country, the Gross Domestic Product is the crossing point of three sides of the economy: expenditure, output, and income. As a measure of well-being of a country for international and temporal comparisons, it provides a good first approximation.
When measuring business, a statistic may only be meaningful if compared to another. It could be compared to the corresponding figure for another entity, such as another country or industry, or to the same measurement taken earlier. When businesses compare a measurement to a series of the same stat, they can identify a trend.