Both methods of assessment indicate that the informal economy has increased rapidly in recent decades in both developing and industrialized countries, and that it contributes significantly to the overall economy in most countries.
这两种评估办法都表明，过去几十年来，非正规经济在发展中国家和工业化国家当中都迅速增长，为大多数国家的总体经济作出了重要贡献。