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Chapter 1: Problem 9

When the demand for toilet paper increases, the equilibrium quantity sold increases. Consumers are buying more, and producers are producing more. a. How do producers receive the signal that they need to increase production to meet the new demand? b. Based on the facts given above, can you say that an increase in the demand for toilet paper causes an increase in the supply of toilet paper? Carefully explain why or why not.

Short Answer

Expert verified
a) Producers receive the signal through price increases. b) Demand increase doesn't inherently increase supply; it signals higher production, which could lead to supply changes.

Step by step solution

01

Understanding Demand Changes

When demand for a product like toilet paper increases, consumers are willing to buy more at each price level. This results in a rightward shift of the demand curve in the market diagram.
02

Finding New Equilibrium

With the demand curve shifting right, the intersection of the demand and supply curves changes. Both the equilibrium price and quantity will increase as producers cannot immediately increase supply, leading to higher prices due to scarcity.
03

Price as a Signal to Producers

The increase in market price serves as a signal to producers. Higher prices can translate into higher potential revenues for producers, encouraging them to increase production to capture additional profits.
04

Analyzing the Supply Reaction

While the increase in demand results in higher production in the short term, it does not inherently shift the supply curve. Instead, producers temporarily increase the quantity supplied by utilizing existing resources more intensively.
05

Addressing the Supply Curve Shift

In the long term, if producers invest in more resources or technology to sustainably increase production, then the supply curve could shift to the right, indicating an increase in supply. Initially, however, the immediate response to demand changes doesn't equate to supply increase.
06

Conclusion on Supply Increase

Thus, an increase in demand doesn't cause an increase in supply; it signals producers to temporarily increase quantity supplied, potentially leading to a long-term change in supply if resources are expanded.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Demand Curve
A demand curve represents the relationship between the price of a good and the quantity demanded by consumers over a given period of time. It typically slopes downwards from left to right, demonstrating that as prices decrease, demand tends to increase, and vice versa. To visualize this, imagine how you might buy more toilet paper if it goes on sale. Thus, demand curves effectively convey buyer behavior in response to different price levels.
  • **Rightward Shift in Demand**: When an increase in demand occurs, as in our toilet paper example, the entire demand curve shifts to the right. Consumers want more at every price point.
  • **Market Impact**: This shift raises both the equilibrium price and the equilibrium quantity, as consumers are willing to pay more to secure the higher demanded quantities.
Understanding demand curves is crucial for predicting how changes in price can affect overall market dynamics and consumer behavior.
Supply Curve
The supply curve illustrates the relationship between the price of a product and the amount producers are willing to supply. Typically, this curve slopes upwards, which means as prices increase, producers are willing to supply more. This reflects the principle that higher prices can spur additional production as potential profits climb.
  • **Temporary and Long-Term Adjustments**: Initially, a supply curve does not shift in response to demand changes; supply only increases temporarily within existing capacity.
  • **Potential for Future Shifts**: Over time, investing in new resources or technology can cause a long-term shift of the supply curve to the right, indicating an increase in supply capability.
Recognizing how the supply curve operates helps explain why producers might not immediately increase production but rather adjust their operations gradually.
Market Price Signal
Market prices serve as crucial signals to both consumers and producers. They act as immediate indicators of changing market conditions. When demand spikes for an item like toilet paper, the price tends to go up, broadcasting a signal that production could be profitable.
  • **Producers' Reaction**: A higher market price suggests increased revenue opportunities, prompting producers to consider boosting production.
  • **Economic Coordination**: Prices enable an efficient communication channel, aligning supply with consumer demand without a central planner's intervention.
This natural price mechanism is essential in driving economic balance, regulating how much of a product is produced, and ensuring resources are utilized effectively.
Production Response
Producers have various response strategies to market signals, primarily dictated by their existing resources and technological capabilities. In the short term, they enhance production via more efficient or intensive usage of current resources when demand surges. Increases in toilet paper production illustrate this by simply pushing existing operations to their limits.
  • **Immediate Response**: Often involves reallocating labor, extending work shifts, or optimizing current production methods.
  • **Long-Term Expansion**: For sustained increases in demand, businesses might invest in new machinery, hire additional workers, or innovate processes, potentially shifting the supply curve rightward.
Understanding these responses helps elucidate how short-term actions differ from strategic long-term planning, and how such decisions impact the market structure.

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Most popular questions from this chapter

Suppose the demand for down pillows is given by \(Q^{D}=100-P\), and that the supply of down pillows is given by \(Q^{s}=-20+2 P\). a. Solve for the equilibrium price. b. Plug the equilibrium price back into the demand equation and solve for the equilibrium quantity. c. Double-check your work by plugging the equilibrium price back into the supply equation and solving for the equilibrium quantity. Does your answer agree with what you got in (b)? d. Solve for the elasticities of demand and supply at the equilibrium point. Which is more elastic, demand or supply? e. Invert the demand and supply functions (in other words, solve each for \(P\) ) and graph them. Do the equilibrium point and relative elasticities shown in the graph appear to coincide with your answers?

Suppose that budding economist Buck measures the inverse demand curve for toffee as \(P=\) $$\$ 100-Q^{D},$$ and the inverse supply curve as \(P=Q^{S} .\) Buck's economist friend Penny likes to measure everything in cents. She measures the inverse demand for toffee as \(P=10,000-100 Q^{D}\), and the inverse supply curve as \(P=100 Q^{s}\). a. Find the slope of the inverse demand curve, and compute the price elasticity of demand at the market equilibrium using Buck's measurements. b. Find the slope of the inverse demand curve, and compute the price elasticity of demand at the market equilibrium using Penny's measurements. Is the slope the same as Buck calculated? How about the price elasticity of demand?

Out of the following events, which are likely to cause the demand for coffee to increase? Explain your answers. a. An increase in the price of tea b. An increase in the price of doughnuts c. A decrease in the price of coffee d. The Surgeon General's announcement that drinking coffee lowers the risk of heart disease e. Heavy rains causing a record-low coffee harvest in Colombia.

The supply of wheat is given by the following equation: $$Q_{W}^{S}=-6+4 P_{w}-2 P_{c}-P_{f}$$ where \(Q_{W}^{S}\) is the quantity of wheat supplied, in millions of bushels; \(P_{w}\) is the price of wheat per bushel; \(P_{c}\) is the price of corn per bushel; and \(P_{f}\) is the price of tractor fuel per gallon. a. Graph the inverse supply curve when corn sells for $$\$ 4$$ a bushel and fuel sells for $$\$ 2$$ a gallon. What is the supply choke price? b. How much wheat will be supplied at a price of $$\$ 4 ? \$ 8 ?$$ c. What will happen to the supply of wheat if the price of corn increases to $$\$ 6$$ per bushel? Explain intuitively; then graph the new inverse supply carefully and indicate the new choke price. d. Suppose instead that the price of corn remains $$\$ 4$$, but the price of fuel decreases to $$\$ 1 .$$ What will happen to the supply of wheat as a result? Explain intuitively; then graph the new inverse supply. Be sure to indicate the new choke price.

How is each of the following events likely to shift the supply curve or the demand curve for fast-food hamburgers in the United States? Make sure you indicate which curve (curves) is affected and if it shifts out or in. a. The price of beef triples. b. The price of chicken falls by half. c. The number of teenagers in the economy falls due to population aging. d. Mad cow disease, a rare but fatal medical condition caused by eating tainted beef, becomes common in the United States. e. The Food and Drug Administration publishes a report stating that a certain weight-loss diet, which encourages the intake of large amounts of meat, is dangerous to one's health. f. An inexpensive new grill for home use that makes delicious hamburgers is heavily advertised on television. g. The minimum wage rises.
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