Efficient production exists when the economy is: select one: a. operating underneath its production possibility frontier. b. operating on its production possibility frontier. c. moving beyond its production possibility frontier. d. operating outside its production possibility frontier.

Simon, aged 10, is invited to a classmate's birthday party at an exclusive ski resort on march 15th. the day will include 4 hours of snowboarding, lunch and birthday cake. simon's mother checks a box on the invitation that says "yes, we will attend" and returns it to the classmate's address. unfortunately, they later don't attend the party when simon comes down with the flu. on march 17th, simon's mother receives an invoice in the mail from simon's classmate for $35 that says, "party no-show fee." can simon's classmate collect the fee?

Classify each of the following items as a public good, a private good, a natural monopoly good, or a common resource.(a) measles vaccinations (b) tuna in the pacific ocean (c) airline service in the united states (d) local storm-water system

Brody corp. uses a process costing system in which direct materials are added at the beginning of the process and conversion costs are incurred uniformly throughout the process. beginning inventory for january consisted of 1,050 units that were 65% completed. 10,900 units were started into the process during january. on january 31, the inventory consisted of 500 units that were 50% completed. what would be the equivalent units for direct materials cost using the weighted average method?