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.
Measurement is an effective management tool because it provides the information decision makers require to accurately monitor key issues related to company and organizational goals, progress and quality at both the executive and project levels, and performance against a plan.