The diagram below shows a set of budget lines facing a household. 
FIGURE 6-8
-Refer to Figure 6-8.The movement of the budget line from ab to ef could be caused by
Definitions:
Administrative Expense
Expenses related to the general operation of a business, including salaries of executive personnel, accounting and legal services, and insurance.
Janitorial Services
A category of services that includes cleaning, maintaining, and often securing commercial or residential buildings.
Square Footages
A measurement of area used to determine the size of a space, often used in real estate and construction for billing or planning purposes.
Allocated
The process of distributing resources or costs among different departments, activities, or products.
Q6: If the total expenditure on cars increases
Q17: Refer to Table 8-1.Which production technique is
Q38: One measure of the extent of market
Q45: Firms have several different concepts of revenue:
Q52: Suppose that the quantity demanded of paperback
Q58: When economists say that a perfectly competitive
Q59: Refer to Table 7-3.The average variable cost
Q85: In the long run,the law of diminishing
Q121: The slope of a firm's isocost line
Q126: Refer to Figure 9-1.The diagram shows cost