it's becoming more common to use card, despite the cash, so it's becoming a world without money

1. Explain how the production or consumption of the good or service creates externalities.

2. Use an appropriate diagram to explain the externalities- postive and negative- associated with the good or service.

3. Evaluate the measures that a government might adopt to correct market failure arising from negative externalities.

4. Discuss to what extent should governments attempt to influence markets where positive externalities exist?