In 541 c e , an outbreak o f bubonic plague hit the Byzantine Empire. Because the plague was spread by flea-infested rats that often lived on ships, ports were hit particularly hard. In some ports, more than 40 percent of the population died. The emperor, Justinian, was concerned that the wages o f sailors were rising very rapidly as a result o f the plague. In 544 c e , he placed a ceiling on the wages o f sailors. Use a demand and supply graph of the market for sailors to show the effect o f the plague on the wages o f sailors. Use the same graph to show the effect o f Justinian’s wage ceiling. Briefly explain what is happening in your graph.