Monopolistic competition is characterized by a:
a) few dominant firms and low entry barriers.
b) large number of firms and substantial entry barriers.
c) large number of firms and low entry barriers.
d) few dominant firms and substantial entry barriers.

Thomas kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory operation. thomas's fastest-moving inventory item has a demand of 6,000 units per year. the cost of each unit is $100, and the inventory carrying cost is $10 per unit per year. the average ordering cost is $30 per order. it takes about 5 days for an order to arrive, and the demand for 1 week is 120 units. (this is a corporate operation, and the are 250 working days per year.)a) what is the eoq? b) what is the average inventory if the eoq is used? c) what is the optimal number of orders per year? d) what is the optimal number of days in between any two orders? e) what is the annual cost of ordering and holding inventory? f) what is the total annual inventory cost, including cost of the 6,000 units?

Tom has brought $150,000 from his pension to a new job where his employer will match 401(k) contributions dollar for dollar. each year he contributes $3,000. after seven years, how much money would tom have in his 401(k)?

What’s the present value of a perpetuity that pays $250 per year if the appropriate interest rate is 5%? $4,750 $5,000 $5,250 $5,513 $5,788what is the present value of the following cash flow stream at a rate of 8.0%, rounded to the nearest dollar? cash flows: today (t = 0) it is $750, after one year (t = 1) it is $2,450, at t = 2 it is $3,175, and at t=3 it is $4,400. draw a time line. $7,917 $8,333 $8,772 $9,233 $9,695