The first four are basic concepts that can be found in consumer magazines. The other criteria are sets of rules I have developed from testimonies and voluntarily sitting through several marketing plans. Finally, I have developed a set of conditions that should automatically disqualify companies from consideration. Reasonable up-front costs. Requiring a sign-up fee is reasonable.
Companies have processing and carrying costs for every person.
However, a profit for the company, or commission for the recruiter, just for signing new recruits. That indicates advancement by buying your way in instead of hard work. Make money by selling the product, not just recruiting new people. This is important. Some companies admit you not going to make money selling the products.