According to news, the international price of coffee has increased, despite the fact that there is no change in the quantity sold. Asked by their lecturer to explain such phenomenon, 5 students have come to different interpretations.Rara : The demand has increased. The supply is, however, perfectly inelastic. Andi : The demand has increased and it is perfectly inelastic.Dini : The demand has increased at the same time with the decrease in the supply. Teguh : The supply has decreased. The demand is, however, unit elastic.Wawan: The supply has decreased. The demand is, however, perfectly inelastic.Whom do you think has the right answer? Explain and use graphs to support your argument.

According to news, the international price of coffee has increased, despite the fact that there is no change in the quantity said. Asked by their lecturer to explain such phenomenon, 5 students have come to different interpretations. Rara 1 The demand has increased. The supply is, however, perfectly inelastic. Andi : The demand has increased and it is perfectly inelastic. Dini : The demand has increased at the same time with the decrease in the supply. Teguh : The supply has decreased. The demand is, however, unit elastic. Wawan: The supply has decreased. The demand is, however, perfectly inelastic. Whom do you think has the right answer? Explain and use graphs to support your argument