Answer the question.

4. Welfare analysis: Basic concepts Identify whether each of the following statements best illustrates the concept of consumer surplus, producer surplus, or neither. Consumer Producer Statement Surplus Surplus Neither Even though I was willing to pay as much as $69 for a swimsuit, I bought a swimsuit for O O O just $61. I sold a used record for $39, even though I was willing to accept as little as $31 in O O O exchange for it. Yesterday I paid $45 for a crew neck. Today, the same store is selling crew necks for $38. O O O