1. According to the World Health Organization vaccinations prevent more than 2 million deaths each year. However, in 2014 there were 18.7 million infants not receiving any vaccinations. Draw an extemalities diagram to illustrate the underconsumption of vaccinations.

2. Romania plans to impose a maximum price in the market for gas below the current equilibrium price. Draw a diagram to illustrate the impact of the introduction of the maximum price on the market for gas in Romania.