Answer:
B. Producing 50 shoes using resources that cost $25
Explanation:
Productivity is described as a measure of efficiency. An increase in efficiency results in an increase in productivity. Productivity is the efficient use of resources. It is the ability to give more output using fewer resources.
An increase in productivity is an increase in production using proportionate fewer resources. In this case, producing 50 shoes with resources of $25 is the most efficient way of using resources from the list produced.
Solution :
Given :
The bonds offer a 
of 4.5% per year
Tax rate = 10% = 0.10
Inflation rate = 2
= + 
= 2 + 4.5
= 6.5
= 
= 
= 5.85
After tax real interest rate = 
-
= 5.85 - 2.0
= 3.85
= 7.0
= +
= 7 + 4.5
= 11.5
= 
= 10.35
= 11.5 x (1 - 0.10)
= 11.5 x 0.90
= 10.35
= -
= 10.35 - 7.0
= 3.35
Putting all the value in table :
Real interest Nominal interest After tax nominal After tax
rate rate interest rate interest rate
2.0 4.5 6.5 5.85 3.85
7.0 4.5 11.5 10.35 3.35
Comparing with the 
, a 
will increase the after after tax real interest rate when the government taxes nominal interest income. This tends to encourage saving, thereby increase the quantity of investment in the economy and the increase the economy's long-run growth rate.
Answer:
The Cost of Goods Sold or COGS for the period was $85000
Explanation:
The cost of goods sold is the value or cost of inventory that has been sold off during the period. The Cost of Goods Sold of COGS can be calculated as follows,
COGS = Opening Inventory + Purchases - Closing Inventory
COGS = 50000 + 75000 - 40000
COGS = $85000
So, the Cost of Goods Sold or COGS for the period was $85000
