Locate the topic of each paragraph. Remember to ask the question. Who or what the paragraph is about?

Tickets for athletic events and musical concerts sometimes get resold for much
greater amounts than the original price—a market transaction known as “scalping.” For example, an original buyer may resell a $75 ticket to a concert for $200, $250 or more. Reporters sometimes denounce scalpers for “ripping off” buyers by charging “exorbitant” prices. But is ticket scalping really undesirable?
Not on economic grounds! We must fi rst recognize that such ticket resales
are voluntary transactions. If both buyer and seller did not expect to gain from the exchange, it would not occur! There are no losers or victims here. Both buyer and seller benefi t from the transaction. The scalping market simply redistributes assets (game or concert tickets) from those who would rather have the money to those who would rather have the tickets.

Paragraph 1: The topic of this paragraph is ticket scalping and the practice of reselling tickets for higher prices than the original price.

Paragraph 2: The topic of this paragraph is the argument that ticket scalping is not undesirable on economic grounds, as it involves voluntary transactions and benefits both the buyer and the seller.

Paragraph 3: The topic of this paragraph is the redistribution of assets (game or concert tickets) through the scalping market, where those who want the money sell their tickets to those who prefer having the tickets.

We'll be glad to check your answer.

Hint: The topic sentence usually tells the main idea.