1. How do Ponzi schemes and pyramid schemes differ? How are they similar? 2. Why are white-collar criminals such as Madoff able to carry out their schemes for so long similar types of fraud often collapse at an early stage? 3. What should be done to ensur

1. How do Ponzi schemes and pyramid schemes differ? How are they similar?

2. Why are white-collar criminals such as Madoff able to carry out their schemes for so long similar types of fraud often collapse at an early stage?

3. What should be done to ensure large-scale fraud such as Ponzi schemes and pyramid schemes do not happen in the future?