If a firm produced 100 pens with a market value of $1 each, but only 50 were sold, what is the value added to the GDP? [duplicate] Is it 100 dollars or 50 dollars? I'm assuming it is$100 because GDP is the total market value of all final products. Is this correct?

That is correct. \$50 would be counted towards consumption, and the rest would be counted as investment (inventory). • So GDP would increase by$100? – Hani Al Jamal Jr. Sep 7 '19 at 7:04