Question 1

Figure 8.9
-Consider Figure 8.9. David chooses to charge a low price

Accepted Answer

David's decision to charge a low price regardless of Becky's pricing strategy suggests he believes this is his optimal strategy under all circumstances, possibly due to factors like competitive advantage, cost structure, or market positioning.

Question 2

Figure 8.9
-Consider Figure 8.9. Becky chooses to charge a low price

Accepted Answer

Becky's profit comes from charging a high price when David chooses a low price and from charging a low price when David chooses a high price. If Becky were to charge a high price regardless of David's price, David would choose a low price, and Becky's profit would decrease. Therefore, Becky must charge a low price regardless of David's price to ensure that David chooses a high price, leading to the highest possible profit for Becky.

Question 3

Figure 8.9
-Consider Figure 8.9. If Becky and David could coordinate their decisions then

Accepted Answer

If Becky and David could coordinate their decisions, they would both choose to charge a high price to avoid the price war that would occur if one or both decided to charge a low price. By charging a high price, they avoid undercutting each other's prices, which would lead to lower profits. Charging a high price allows them both to maintain higher profit margins, resulting in profits of 90 each, assuming this is the equilibrium outcome when both choose high prices in a coordinated manner.

Question 4

Figure 8.9
-Consider Figure 8.9. The outcome of the game will be that

Accepted Answer

In a typical game theory scenario like the one described, if both players are rational and have the goal of maximizing their own payoff without the ability to collude or communicate, they often end up choosing a strategy that leads to a Nash Equilibrium. This is a situation where neither player can benefit by unilaterally changing their strategy given the strategy of the other player. In many pricing games, the Nash Equilibrium occurs when both players choose a low price because this strategy protects against losses that would occur if one chose a high price while the other chose a low price. This outcome assumes that choosing a low price guarantees some market share at a lower margin, whereas choosing a high price risks losing market share entirely if the competitor undercuts the price.

Question 5

Recall the Application about the attempt to form a salt cartel in the 19th century to answer the following question(s).
-Recall the Application. One reason cited for the failure of the salt cartel was

Accepted Answer

The article states that "new salt mines opened up, and new firms entered the market, underpricing the cartel and causing it to collapse." This suggests that competition from new firms was a key factor in the failure of the cartel.

Question 6

Figure 8.9
-Consider Figure 8.9. If the players choose independently, what will be the outcome?

Accepted Answer

In a scenario where players choose independently without coordination, they are likely to gravitate towards strategies that maximize their individual payoffs given the uncertainty of the other player's choice. In many competitive settings, this often results in both players choosing a strategy that is safer or guarantees a certain level of payoff, which, in many pricing games, translates to choosing a lower price to ensure competitiveness in the market. This is known as the Nash Equilibrium in game theory, where no player has anything to gain by changing only their own strategy unilaterally if the strategies of the other players remain unchanged.

Question 7

Figure 8.9
-Consider Figure 8.9. Relative to the dominant strategy outcome, guaranteed price fixing would lead to

Accepted Answer

Guaranteed price fixing typically leads to higher prices and higher profits for the firms involved, as they can coordinate to set prices above the competitive level, reducing competition and increasing their profit margins.

Question 8

Recall the Application about the attempt to form a salt cartel in the 19th century to answer the following question(s).
-Recall the Application. One of the primary goals of the salt producers who tried to form a cartel was to

Accepted Answer

The primary goal of the salt producers who attempted to form a cartel was to establish a uniform price for salt, which would help them control the market and increase their profits. Boosting demand, establishing an export market, and increasing competition were not their primary objectives.

Question 9

Figure 8.9
-Consider Figure 8.9. Choosing a low price is

Accepted Answer

A dominant strategy is a strategy that maximizes a player's payoff regardless of the other player's strategy. In this case, if David chooses a high price, his payoff will be $100 if Becky chooses a low quality product, and $50 if Becky chooses a high quality product. However, if David chooses a low price, his payoff will be $70 regardless of Becky's choice. Therefore, choosing a low price is a dominant strategy for David. Similarly, if Becky chooses a high price, her payoff will be $100 if David chooses a low quality product, and $50 if David chooses a high quality product. However, if Becky chooses a low price, her payoff will be $70 regardless of David's choice. Therefore, choosing a low price is a dominant strategy for Becky. Thus, the answer is C, which says that choosing a low price is a dominant strategy for both David and Becky.

Question 10

Figure 8.9
-Consider Figure 8.9. If David's payoff in the bottom rectangle were 40 instead of 70, the outcome of the game would be that

Accepted Answer

The answer of  Figure 8.9
-Consider Figure 8.9. If David's...

Question 11

Figure 8.9
-Consider Figure 8.9. If Becky's payoff in the top rectangle were 300 instead of 90, the outcome of the game would be that

Accepted Answer

The answer of  Figure 8.9
-Consider Figure 8.9. If Becky's...

Question 12

Figure 8.9
-Consider Figure 8.9. If Becky's payoff in the second rectangle from the top were 80 instead of 60, the outcome of the game would be that

Accepted Answer

If Becky's payoff in the second rectangle from the top were 80 instead of 60, she would have a greater incentive to choose a high price. David would still have an incentive to choose a low price to avoid a loss. Therefore, the best choice for Becky would be to choose a high price, and the best choice for David would be to choose a low price. This leads to the outcome that Becky chooses a high price and David chooses a low price (Choice C).

Question 13

Figure 8.9
-Consider Figure 8.9. Choosing a high price is

Accepted Answer

Choosing a high price is not a dominant strategy for either David or Becky. If David chooses a high price, Becky's best response would be to choose a low price, earning a profit of 4. If David chooses a low price, Becky's best response would still be to choose a low price, earning a profit of 5. Similarly, if Becky chooses a high price, David's best response would be to choose a low price, earning a profit of 5. If Becky chooses a low price, David's best response would still be to choose a low price, earning a profit of 4. Therefore, there is no dominant strategy for either player in this game.

Question 14

Figure 8.9
-The incentive to charge a low price even though it leads to lower profits in Figure 8.9 is an example of

Accepted Answer

The duopolists' dilemma refers to the situation where two competing firms have an incentive to collude and act as a cartel to maximize profits, but each firm also has an incentive to cheat and increase its own market share. In the case of Figure 8.9, both firms have an incentive to charge a low price to increase their market share, but this leads to lower profits for both firms.

Question 15

A Nash Equilibrium in a game is that outcome in which

Accepted Answer

A Nash Equilibrium is a state in which both players in a game have chosen a strategy and no player has an incentive to change their strategy, given the other player's strategy. In other words, each player is doing the best they can given the other player's action, which is the definition given in option A. Options B and C are not sufficient because a Nash Equilibrium does not necessarily mean that players' profits are equal or that they are earning the highest profits possible. Option D is incorrect because a Nash Equilibrium can involve the players playing their dominant strategies.

Question 16

The concept of Nash Equilibrium

Accepted Answer

The concept of Nash Equilibrium has wide applicability in various fields like economics, political science, psychology, and biology. It is a fundamental concept in game theory and has been extensively used to analyze various strategic interactions.

Answer: C
 The Nash Equilibrium is a theoretical concept that assumes that each player in a game will follow their dominant strategy based on the assumption that others will also do the same. While the assumption may not always hold true, it has been observed that firms generally follow their dominant strategies in economic behavior, making the concept of Nash Equilibrium quite applicable in economics.

Answer: D
 There is no evidence to suggest that the concept of Nash Equilibrium has been disproven by modern economists. On the contrary, it remains a widely used and accepted concept in game theory, and its applicability has been demonstrated in various real-world situations.

Question 17

Price fixing tends to fail in an oligopoly because

Accepted Answer

In an oligopoly, there are typically only a few large firms competing in the market. It is difficult for them to collude and fix prices without the risk of one or more firms breaking the agreement and undercutting the others to gain a larger market share. This incentive to undercut each other makes price-fixing agreements unstable and likely to fail.

Question 18

An action that is the best choice under all conditions is known as a

Accepted Answer

A dominant strategy is the best choice under all conditions because it results in the highest payoff regardless of the choices made by the other players.

Question 19

A dominant strategy is one that

Accepted Answer

A dominant strategy is the best choice regardless of what the other player chooses. Therefore, it is the safest option and guarantees the highest payoff.

Question 20

The duopolists' dilemma refers to the situation in which

Accepted Answer

The duopolists' dilemma refers to the situation in which both firms would earn higher profits by maintaining high prices, but each firm has an incentive to lower its price to capture a larger market share. This leads to a "race to the bottom" in which both firms end up with low profits. Therefore, duopolists face a dilemma between cooperating to maintain high prices and competing to capture market share.

Quiz 8: Market Entry, Monopolistic Competition, and Oligopoly

Figure 8.9 -Consider Figure 8.9. David chooses to charge a low price

Figure 8.9 -Consider Figure 8.9. Becky chooses to charge a low price

Figure 8.9 -Consider Figure 8.9. If Becky and David could coordinate their decisions then

Figure 8.9 -Consider Figure 8.9. The outcome of the game will be that

Recall the Application about the attempt to form a salt cartel in the 19th century to answer the following question(s) . -Recall the Application. One reason cited for the failure of the salt cartel was

Figure 8.9 -Consider Figure 8.9. If the players choose independently, what will be the outcome?

Figure 8.9 -Consider Figure 8.9. Relative to the dominant strategy outcome, guaranteed price fixing would lead to

Recall the Application about the attempt to form a salt cartel in the 19th century to answer the following question(s) . -Recall the Application. One of the primary goals of the salt producers who tried to form a cartel was to

Figure 8.9 -Consider Figure 8.9. Choosing a low price is

Figure 8.9 -Consider Figure 8.9. If David's payoff in the bottom rectangle were 40 instead of 70, the outcome of the game would be that

Figure 8.9 -Consider Figure 8.9. If Becky's payoff in the top rectangle were 300 instead of 90, the outcome of the game would be that

Figure 8.9 -Consider Figure 8.9. If Becky's payoff in the second rectangle from the top were 80 instead of 60, the outcome of the game would be that

Figure 8.9 -Consider Figure 8.9. Choosing a high price is

Figure 8.9 -The incentive to charge a low price even though it leads to lower profits in Figure 8.9 is an example of