1. Suppose the demand and supply for milk is described by the following equations: QD = 800-100P; QS= -700 + 400P, where P is price in dollars, QD is quantity demanded in millions of gallons per year, and QS is quantity supplied in millions of gallons per year. Calculate equilibrium quantities and price.                 2.      If the price in the above market is $4 would the market be in equilibrium, surplus or shortage?  If it is in surplus or shortage, how much would the shortage or surplus be?

Determine the equilibrium price and quantity for the following laws of demand and supply in the manufacture of computer parts Demand: 3p + 5x = 200Bid:          7p - 3x = 56

How would each event affect the market for COVID-19 vaccines? Does the event cause a change in demand or a change in the quantity demanded?  Is the change positive or negative?  Or does the event cause a change in supply or a change in the quantity supplied?  Is the change positive or negative?  Explain the mechanism for the change and what happens to equilibrium price and quantity. a) The vaccine is approved for children under the age of 12. b) The U.S. government provides a subsidy that allows the price of the vaccine to be $0 for everyone. c) Several vaccines pass Phase 3 (large-scale efficacy tests) and are approved by the FDA for full use. d) A truck carrying the Pfizer vaccine has a malfunction and the refrigeration requirements aren’t met, so all the doses go bad. e) School districts and health care facilities add a requirement for getting the vaccine for all employees.

In the table below, fill in the missing blanks to complete the summary of the effects of changes in demand and supply on equilibrium price and quantity. Supply Curve Unchanged Supply Curve Shifts to the Supply Curve Shifts to the Right Left Q unchanged Punchanged Demand Curve Q Q decreases Unchanged P decreases P increases Q increases Q increases Pindeterminant Demand Curve Shifts to Q indeterminant the Right P increases Q decreases P decreases Demand Curve Shifts to the Left P decreases P indeterminant

For each of the following changes in the demand or supply curves in the automobile market below, draw a graph showing the old demand and supply curves as well as the new demand or supply curve (whichever shifts).  Also, show how the equilibrium price and equilibrium quantity change. Show work on 3 different graphs. The income of consumers rises and automobiles are considered a normal good. Over time, and due to new resource discoveries, gasoline prices fall. The availability and price of public transportation falls.

What are the potential effects in the market for automobiles if the cost of steel and rubber used in the production of automobiles increases. a) draw a supply/demand graph of the automobile market. b) indicate starting equilibrium price and equilibrium quantity. c) analyze graphically the effect of the change given above on equilibrium price and equilibrium quantity in the automobile market.

Below are the supply and demand schedules for a video game. Price $200 $180 $160 $140 $120 $110 $100 $90 $80 $60 Quantity Demanded 10 15 20 25 30 35 40 45 50 55 Quantity Supplied 100 90 80 70 60 50 40 30 20 10 a) What is the equilibrium price? $ b) What is the equilibrium quantity? Assume that this video game receives a poor rating and consumers decide to purchase 45 less at each price. c) What is the new equilibrium price? $ d) What is the new equilibrium quantity? 100 40 units units

Suppose that the market for coffede is in equilibrium at a price of $2.25 per pound and a monthly quantity of 50 million pounds. After a cold winter in South America, people know that the supply of coffee months from now will be sharply reduced. What if anything, will happen in the foffee market now? Explain.

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The weekly demand for wine in the United States is described by the following equation:  Qd = 45,000,000 - 1,500,000P where Qd is the weekly quatity demanded in bottles and P is the price per bottle in dollars. The weekly supply of wine in the United States is described by the following equation:  Qs = -5,000,000 + 1,000,000P where Qs is the weekly quantity supplied in bottles and P is the price per bottle in dollars.  a. What is the equilibrium price and quantity for wine in the US? Intense lobbying efforts result in the United States government establishing a $5 per bottle excise tax by wine producers. b. What would be the new equilibirum price and quantity after the imposition of the per bottle excise tax? c. Determine the total amount of the consumer surplus assuming the market for wine is in equilibrium after the imposition of the excise tax.