5. On November 15, I. Sellit, a manufacturer of crystalware, mailed to Benny Buyer a letter stating that Sellit would sell to Buyer one hundred crystal "A" goblets at $100 per goblet and that "the offer would remain open for fifteen (15) days." On November 18, Sellit, noticing the sudden rise in the price of crystal "A" goblets, decided to with- draw her offer to Buyer and so notified Buyer. Buyer chose to ignore Sellit’s letter of revocation and gleefully watched as the price of crystal "A" goblets continued to skyrocket. On November 30, Buyer mailed to Sellit a letter accepting Sellit’s offer to sell the goblets. The letter was received by Sellit on December 4. Buyer demands delivery of the goblets. What result?

Suppose a firm faces a fixed price of output, 푝푝= 1200. the firm hires workers from a union at a daily wage, 푤푤, to produce output according to the production function 푞푞= 2퐸퐸12. there are 225 workers in the union. any union worker who does not work for this firm is guaranteed to find nonunion employment at a wage of $96 per day. a.what is the firm’s labor demand function? b.if the firm is allowed to choose 푤푤, but then the union decides how many workers to provide (up to 225) at that wage, what wage will the firm set? how many workers will the union provide? what is the firm’s output and profit? what is the total income of the 225 union workers? c.now suppose that the union sets the wage, but the firm decides how many workers to hire at that wage (up to 225). what wage will the union set to maximize the total income of all 225 workers? how many workers will the firm hire? what is the firm’s output and profit? what is the total income of the 225 union workers? [hint: to maximize total income of union, take the first order condition with respect to w and set equal to 0.]