As one of the local economy stimulus package, all of you are well aware that the New South Wales (NSW) government introduced a Dine and Discover NSW scheme to support local businesses. The package is worth $100 out of which $50 can be spent on food such as dining in restaurants or purchasing takeaways.

Explain the efficiency consequences of such food voucher schemes under two scenarios below using well-labelled diagrams.

a) Friday Orders a Takeaway that is exactly $50

b) Crusoe orders a takeaway that is worth $70 so eventually ends up paying $20 from his own pocket