street vendor/ street seller街头摊贩、街头小贩

street-stall and small-store economy地摊经济、小店经济

informal economy / black economy / underground economy 黑市经济、黑市经营、地下经济活动

roadside food stall / roadside booth路边摊

street stall 地摊

culinary culture 餐饮文化

small business owner小企业主

individual traders / self-employed individuals / self-employed people 个体工商户

micro and small businesses小微企业