He can not become a citizen because he is under the age of 18 and hasn't lived in the country for seven years.
<span>the foot-in-the-door phenomenon</span>
They use pictures unlike alphabetic letters.
I believe the answer is: Vertical
Philip curves would be vertical when the market is having a natural rate of employment and this rate of employment wouldn't be affected by the inflation. Neoclassical view would believe that even under inflation, the average supply and demand would still move toward equilibrium, so the employment rate shouldn't be affected as much.<span />