Harry's Pepperoni Pizza Parlor produced 10,000 large pepperoni pizzas last year that sold for $10 each. This year Harry's produced 12,000 large pepperoni pizzas (identical to last year's pizzas) but sold them for $10 each. Based on this information, we can conclude that Harry's production of large pepperoni pizzas

Multiple Choice

• increased nominal GDP by $20,000.
• did not change nominal GDP.
• decreased real GDP by $20,000.
• did not change real GDP.