a. According to the news clip, is second-hand clothing a normal good or an inferior good?

If the price of second-hand clothing falls and income remains the same, explain how the quantity of second-hand clothing bought changes.

b. Describe the substitution effect and the income effect that occur.

Resale has been doing very well through the pandemic.
At Poshmark, which connects buyers with sellers of new and used merchandise, sales are up 50% year-over-year from mid-April into May.