A hypothetical revision app sells separate plans to Monash undergraduates and alumni, with no resale. Undergraduate demand is Q_U=60-P_U and alumni demand is Q_A=40-P_A. Constant marginal cost is 10. Find the profit-maximising undergraduate price.

Please enter a number only. If your answer is a decimal, round it to no more than two decimal places. Do not include spaces, commas, letters, or special characters such as dollar signs.

A Monash student spends 96 per week on lunch bowls x and movie tickets y, with U(x,y)=xy, p_x=6, and p_y=12. Find the optimal number of lunch bowls.

Please enter a number only. If your answer is a decimal, round it to no more than two decimal places. Do not include spaces, commas, letters, or special characters such as dollar signs.

Two students trade meal vouchers x and printing credits y. A student owns (x^e,y^e)=(5,6). At p_x=3 and p_y=2, what is the value of this endowment?

Consider a hypothetical graduate job market in which a certificate does not improve productivity. High-productivity graduates find it cheaper to obtain than low-productivity graduates. How can the certificate support a separating equilibrium?

Students sell used laptops online. Sellers know quality, but buyers cannot distinguish high-quality laptops from faulty ones before purchase. What can cause high-quality sellers to withdraw?

In a hypothetical competitive student-rental market near Clayton, weekly equilibrium rent is 450. A binding rent ceiling of 380 is imposed. What is the usual market effect?

A student with u(w)=\sqrt{w} faces a scholarship lottery giving wealth 25 or 81, each with probability 1/2. Which pair gives the certainty equivalent and expected wealth, respectively?

Deliveries to a hypothetical campus precinct create congestion. At the efficient delivery quantity, marginal external congestion damage is 6 per delivery. What Pigouvian tax supports that quantity?

A risk-averse student can insure a bicycle against theft at an actuarially fair premium, with full reimbursement and no other frictions. Why is full insurance attractive?

Three housemates near Caulfield value a shared kitchen appliance at 12, 8, and 5. Once purchased, all can use it without reducing others' benefits. It costs 22. Which statement is correct?