Companies delivering mixed concrete know that it cannot be shipped farther than 25 miles because the concrete might harden in the truck. Carter Concrete Supply Co is the only supplier of mixed concrete to customers within a 30-mile radius. Carter Concrete Supply Co is an example of which one of the following competitive structures?

A. Monopoly
B. Oligopoly
C. Monopolistic competition
D. Pure competition
E. Monopsony

A. Monopoly

Explanation:

Monopoly is a market structure in which there is a single producer of a good that has no close substitutes.

Since Carter Concrete Supply Co is the only supplier of mixed concrete to customers within a 30-mile radius, it is an example of monopoly competitive structure.

premium liability (coupon oustanding) $ 1,500

Explanation:

We will recognize a liablity based on expected coupon redemption of 10%:

Sold 1,000,000 deluxe snack = 1,000,000 coupon

from this we expect 10% will be redeem: 1,000,000 x 10% = 100,000

Then, calculate the cost that this coupon will generate:

Thre will be 100,000 redeem coupons which, every 10 is traded for a 1.50 silver chip clip:

100,000 / 10 x $ 1.50 = $ 15,000

For the sales of we have a premium liablity of 15,000

premium expense    15,000

          premium liaiblity            15,000

We also purchase this silver chip clip:

Premium Inventory 15,000

                Cash                   15,000

During the year, we adjust for the chips clips distributed:

9,000 x $ 1.50 = 13,500

This decreases both, the liablity and the premium inventory.

Premium Liability        13,500 debit

            Premium Inventory       13,500 credit

Adjusted year-end balance:

15,000 - 13,500 = 1,500