Ok good to know what the question do you want evidence to support go against or did you just want to share that factv
Informal trading is the term used to describe a method of carrying business as a street vendor or as an associate of one. A poorer individual can earn a living through activity such as food preparation or selling small items, this enables people to have immediate cash flow with little or no investment and the avoidance of paying tax.
I hope this explains your question.