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This is generally not the case in developing countries such as China and India. Because economic development in a country's early stages is so dependent on imported technology, foreign investment and exports, economic growth tends to be clustered in those areas that attract such things (typically coastal areas, big cities, and areas that receive special advantages from the government). The result is that economic development can vary greatly within developing countries with, for example, the percentage of "middle-class" families in one region vastly outstripping that of another region within the same country.