List of countries by GDP (nominal)
Gross domestic product (GDP) is the market value of all final goods and services from a nation in a given year. Countries are sorted by nominal GDP estimates from financial and statistical institutions, which are calculated at market or government official exchange rates. Nominal GDP does not take into account differences in the cost of living in different countries, and the results can vary greatly from one year to another based on fluctuations in the exchange rates of the country's currency. Such fluctuations may change a country's ranking from one year to the next, even though they often make little or no difference in the standard of living of its population.
Urban theory
Arguably, the culprit of this economic entrapment is the high consumption lifestyle synonymous with affluence. The resolve may well be that ‘less is more’ and that true welfare lies not in rise in production and income. As such, Gross Domestic Product (GDP) is increasingly being questioned as inaccurate and inadequate. GDP includes things that do not contribute to sustainable growth and excludes non-monetary benefits that improve the welfare of the people. In response, alternative measures have been proposed such as the Genuine Progress Indicator (GPI) and the Index of Sustainable Welfare - ISEW.