Suppose that the equilibrium price of haircuts in Chicago decreases and the equilibrium quantity of haircuts increases. Which of the following events is most likely to have occurred? i. A new regulation that mandates that everyone in Chicago get a haircut every three months ii. An increase in the wages paid to babysitters in Chicago (most hairstylists can also work as babysitters) iii. A new trend that makes unusual haircuts cool iv. An increase in the number of hairstylists in Chicago