In marginal analysis, when comparing costs and benefits, an optimal choice is found when . (Note: MB = marginal benefit, MC = marginal cost, TB = total benefit, and TC = total cost.) Select the correct answer below:
a. MB≥MC
b. MB c. TB=TC
d. TB>TC

Jewelry manufacturers produce a range of products such as rings, necklaces, bracelets, and brooches. what fundamental economic question are they addressing by offering this range of items?

Acoase solution to a problem of externality ensures that a socially efficient outcome is to

Garfield corporation is considering building a new plant in canada. it predicts sales at the new plant to be 50,000 units at $5.00/unit. below is a listing of estimated expenses. category total annual expenses % of annual expense that are fixed materials $50,000 10% labor $90,000 20% overhead $40,000 30% marketing/admin $20,000 50% a canadian firm was contracted to sell the product and will receive a commission of 10% of the sales price. no u.s. home office expenses will be allocated to the new facility. the contribution margin ratio for garfield corporation is