世界银行：利用家庭调查和专业企业调查来衡量非正规企业（英文版）

This paper compares two widely used methods for surveying informal enterprises: household surveys, which collect data on enterprises through household interviews, and area-based enterprise surveys, which directly target businesses in specific geographic areas. By implementing both survey approaches simultaneously in two urban centers in Ghana, this study examines key differences and similarities in the characteristics of informal enterprises across these cities. The analysis reveals substanti