Differential aspect Ponzi Scheme Pyramid Scheme

Structure and Operation

A single person or entity (the "Ponzi operator") convinces investors to invest their money by promising high returns. Participants are encouraged to recruit new members into the scheme. 
Focus of Recruitment The primary focus is on attracting new investors and convincing them to invest their money The emphasis is on recruitment and expanding the participant base. 
Returns on investment/ Revenue generation It does not involve any legitimate revenue-generating activity. The funds collected from new investors are used to pay returns to earlier investors, creating the illusion of profits.  The funds collected from new participants are used to pay commissions & bonuses to existing participants. The products or services offered are often of little value or merely a front to legitimize the scheme.