Hall and Klitgaard approach economic history as a sequence of technical and political arrangements to deal with energy. Indeed, they see energy as the single non-substitutable factor of production.

The key issue for them is Energy Return on Energy Invested. How do they calculate EROEI?

a EROI = Energy Output/Energy Input
b EROI = Energy Input/Energy Output
c EROI = Energy Output divided by the price of energy
d EROI = Energy Input divided by the price of energy

What cylinder head operation is the technician performing in this figure?

At a student café, there are equal numbers of two types of customers with the following values. the café owner cannot distinguish between the two types of students because many students without early classes arrive early anyway (i.e., she cannot price-discriminate). students with early classes students without early classes coffee 70 60 banana 51 101 the marginal cost of coffee is 10 and the marginal cost of a banana is 40. the café owner is considering three pricing strategies: 1. mixed bundling: price bundle of coffee and a banana for 161, or just a coffee for 70. 2. price separately: offer coffee at 60, price a banana at 101. 3. bundle only: coffee and a banana for 121. do not offer goods separately. assume that if the price of an item or bundle is no more than exactly equal to a student's willingness to pay, then the student will purchase the item or bundle. for simplicity, assume there is just one student with an early class, and one student without an early class. price strategy revenue from pricing strategy cost from pricing strategy profit from pricing strategy 1. mixed bundling $ $ $ 2. price separately $ $ $ 3. bundle only $ $ $ pricing strategy yields the highest profit for the café owner.

Croy inc. has the following projected sales for the next five months: month sales in units april 3,850 may 3,875 june 4,260 july 4,135 august 3,590 croy’s finished goods inventory policy is to have 60 percent of the next month’s sales on hand at the end of each month. direct material costs $2.50 per pound, and each unit requires 2 pounds. raw materials inventory policy is to have 50 percent of the next month’s production needs on hand at the end of each month. raw materials on hand at march 31 totaled 3,741 pounds. 1. determine budgeted production for april, may, and june. 2. determine the budgeted cost of materials purchased for april, may, and june. (round your answers to 2 decimal places.)