The U.S. Postal Service has a monopoly on nonurgent First...

The U.S. Postal Service has a monopoly on nonurgent First Class Mail. Pfizer Inc. makes LIPITOR, a prescription drug that lowers cholesterol. Cox Communications is the sole provider of $\mathrm{ca}-$ ble television service in some parts of San Diego. Are any these firms protected by a barrier to entry? Do any of these firms produce a good or service that has a substitute? Might any of them be able to profit from price discrimination? Explain your answers. Use the following table to work Problems 2 to 4 Minnie's Mineral Springs is a single-price monopoly. Columns 1 and 2 of the table set out the market demand schedule for Minnie's water and columns 2 and 3 set out Minnie's total cost schedule. $$\begin{array}{ccc} \begin{array}{c} \text { Price } \\ \text { [dollars } \\ \text { per bottle) } \end{array} & \begin{array}{c} \text { Quantity } \\ \text { (bottles } \\ \text { per hour) } \end{array} & \begin{array}{c} \text { Total cost } \\ \text { (dollars } \\ \text { per hour) } \end{array} \\ \hline 10 & 0 & 1 \\ 8 & 1 & 3 \\ 6 & 2 & 7 \\ 4 & 3 & 13 \\ 2 & 4 & 21 \\ 0 & 5 & 31 \end{array}$$

The U.S. Postal Service has a monopoly on nonurgent First Class Mail. Pfizer Inc. makes LIPITOR, a prescription drug that lowers cholesterol. Cox Communications is the sole provider of $\mathrm{ca}-$ ble television service in some parts of San Diego. Are any these firms protected by a barrier to entry? Do any of these firms produce a good or service that has a substitute? Might any of them be able to profit from price discrimination? Explain your answers.
Use the following table to work Problems 2 to 4 Minnie's Mineral Springs is a single-price monopoly. Columns 1 and 2 of the table set out the market demand schedule for Minnie's water and columns 2 and 3 set out Minnie's total cost schedule.
$$\begin{array}{ccc}
\begin{array}{c}
\text { Price } \\
\text { [dollars } \\
\text { per bottle) }
\end{array} & \begin{array}{c}
\text { Quantity } \\
\text { (bottles } \\
\text { per hour) }
\end{array} & \begin{array}{c}
\text { Total cost } \\
\text { (dollars } \\
\text { per hour) }
\end{array} \\
\hline 10 & 0 & 1 \\
8 & 1 & 3 \\
6 & 2 & 7 \\
4 & 3 & 13 \\
2 & 4 & 21 \\
0 & 5 & 31
\end{array}$$

Key Concepts

Barriers to Entry

Barriers to entry refer to obstacles that prevent or make it difficult for new competitors to enter a market. These obstacles can be natural, such as high start?up costs or economies of scale; legal, such as regulations, patents, or licenses; or strategic, such as exclusive contracts or control over key resources. Each type of barrier can help an incumbent firm maintain its market power and limit competition.

Substitute Goods

Substitute goods are alternative products or services that consumers can switch to if the price of one option increases or if its quality decreases. The presence of close substitutes in a market limits a firm’s pricing power because consumers can easily move to a different product if a firm’s prices are too high or if service quality declines. Understanding the availability and closeness of substitutes is crucial for analyzing market competition and consumer behavior.

Price Discrimination

Price discrimination is the strategy of charging different prices to different consumers for the same product, based on factors like willingness to pay, purchase volume, or consumer segment. In order to successfully practice price discrimination, a firm must have market power (often as a monopolist or a dominant player), must be able to segment the market without arbitrage between segments, and must have information regarding the consumers' willingness to pay. This pricing strategy can enable a firm to capture a larger portion of consumer surplus and increase profitability.

Market Structure (Monopoly and Exclusive Markets)

Market structure analyzes how firms are organized in a market and the nature of competition. A monopoly exists when a single firm dominates the market, which often occurs due to barriers to entry or government regulation. In such markets, the monopolist may have the power to set prices, although its decisions may still be influenced by the presence of substitute products. The characteristics of a monopoly, such as the lack of close substitutes and the potential for price discrimination, greatly inform a firm’s pricing strategies and profit potential.

Transcript

00:01 Okay, we're looking at the postal service, pfizer, and cox communications.

00:29 Do these have barriers to entry? for the u .s.

00:32 Postal service, we're looking at non -urgent first -class mail.

00:37 And yes, they do.

00:40 The u .s.

00:41 Postal service has huge amounts of infrastructure.

00:45 They have mail trucks that deliver.

00:47 They have not just mail trucks that deliver to your house, but they have mail trucks that deliver from place to place.

00:59 They've got mail trains.

01:01 They have a huge amount of infrastructure to allow us to deliver non -urgent mail from place to place.

01:08 So if you're looking to compete with u .s.

01:11 Postal service on this, they have a major leg up because they can do it anywhere in the united states to anywhere in the united states without trouble.

01:22 Now, pfizer, for the production of rivestown.

01:25 Does in fact have a barrier to entry, have barriers to entry.

01:31 Not only are they set up to manufacturer lipitor, but they own the patents.

01:36 So they are legally the only group that can until such time as the generics are allowed to be used.

01:43 So that is a major barrier to entry.

01:46 If you want to produce lipitor, you have to get pfizer's approval to do so...

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