Write your own opportunity cost situation, similar to those above. It should include the four components discussed previously. example: The city was building a new park. There was only enough money in the budget to include new tennis courts, a wading pool, a music stage, or a parking lot. At the public hearing, many of the people wanted more parking. City Council voted to build the music stage after narrowing it down to either the stage or the wading pool. What was the city’s opportunity cost?