You read online that, at current rates of production, the yearly world supply of food is sufficient to feed the projected 2050 population of earth, but that after 2050 there will be massive starvation. This prediction appears to assume that:

Alpha industries is considering a project with an initial cost of $8 million. the project will produce cash inflows of $1.49 million per year for 8 years. the project has the same risk as the firm. the firm has a pretax cost of debt of 5.61 percent and a cost of equity of 11.27 percent. the debt–equity ratio is .60 and the tax rate is 35 percent. what is the net present value of the project?

Suppose a starbucks tall latte cost $4.00 in the united states, 5.00 euros in the euro area and $2.50 australian dollars in australia. nominal exchange rates are .80 euros per dollar and 1.4 australian dollars per u.s. dollar. where does purchasing power parity hold? a. both the euro area and australia. b. neither the euro area or australia. c. the euro area but not australia. d. australia but not the euro area.

When the price of pencils increases from $1.50 to $2.50, there is an increase in quantity demanded of pens from 100 to 150. the cross-price elasticity of demand between pencils and pens is: ?