AnswerA
ExplanationIn Global Economics for Managers, gross domestic product (GDP) is widely regarded as the single best available measure of a society's economic well-being, making option A correct. GDP measures the total market value of all final goods and services produced within a country's borders during a given period.
Although GDP has limitations---it does not account for income distribution, environmental degradation, or non-market activities---it remains the most comprehensive and consistent indicator of economic performance across countries and over time.
Option B is incorrect because inflation is measured by price indices such as the GDP deflator or the consumer price index (CPI), not by GDP growth. Option C is incorrect because GDP values goods and services at market prices without weighting one more heavily than the other. Option D is incorrect because GDP excludes income earned by citizens working abroad; that income is included in gross national income (GNI), not GDP.
Global Economics for Managers emphasizes that GDP is particularly useful for comparing economic output and living standards internationally, especially when adjusted for purchasing power parity.
Thus, option A correctly describes GDP.