Graduate students at University of Massachusetts consume only two goods: rental apartment space (good x) and sandwiches (good y). 2020: I = $3,000 Px = $4Py = $6 %3D 2021: I = $3,300 Px = $5Py = $6 Assume, in each year, all graduate students have the same income and face the same prices for apartments and sandwiches. However, graduate students have different preferences for apartments and sandwiches, but each student's preferences are consistent from year to year. Assume also that each student chooses his most preferred bundle given his budget set in each year. Denote the bundle in 2020 by (Xo, yo) and this year's bundle by (x1, yı). a. What are the equations for their budget constraints in 2020 and 2021? b. What combination (bundle) of apartments and sandwiches is on graduate students' budget constraints in 2020 and 2021? С. On a carefully labeled graph with square feet on the horizontal axis, draw the budget constraints.

Exercise 2 Suppose you have the following hypothetical demand or sales function. Qx= -4Px+2Py+0.201+0.04A and PX = $200, (price of good X) PY =$230, (price of good Y) 1 = $1,500 (disposable per capita income) A=$12,000 (advertizing expenditures) a. Write out a reduced demand function b. Solve for and write out the demand curve equation c. Give a narrative interpretation for the coefficient of I d. How could we classify good X and good Y? Explain why.

A grocery store is considering putting broccoli on sale, temporarily reducing the price 501 %. Let Y₁¡ denote the amount of broccoli household i would purchase if broccoli is on sale when they visit the grocery. And let Yoi denote the amount of broccoli household i would purchase if broccoli is not on sale when they visit the grocery. Which of the following represents the causal effect of putting broccoli on sale on the amount of broccoli household i purchases? O Y₁i-Yoi 10 Y + Y li 2 O Y₁i O O Oi

Ariya likes to play golf. The number of times per year that she plays depends on both the price of playing a round of golf as well as Ariya's income and the cost of other types of entertainment-in particular, how much it costs to go see a movie instead of playing golf. The three demand schedules in the table below show how many rounds of golf per year Ariya will demand at each price under three different scenarios. In scenario D1, Ariya's income is $80,0o00 per year and movies cost $15 each. In scenario D2, Ariya's income is also $80,000 per year, but the price of seeing a movie rises to $17. And in scenario D3, Ariya's income goes up to $100,000 per year, while movies cost $17. Scenario D1 D2 D3 Income per year $80,000 $80.000 $100,000 Price of movie ticket $15 $17 $17 Price of Golf Quantity Demanded $55 15 10 15 $40 25 15 30 $25 40 20 50 Instructions: Round your answers to two decimal places. If you are entering any negative numbers be sure to include a negative sign (-) in front of…