Answer:
Economics
Explanation:
Economics is the study of the activities that individuals and society undertake to satisfy their unlimited wants using scarce resources. Economics involves analysis of the production of goods and services, their distribution and consumption in a country. It involves the study of how individuals, firms, and the government allocates scarce resources to meet the need of society.
Economics is categorized in microeconomics and macroeconomics. Microeconomics concentrates on the key economic indicators such as demand, supply, and income and how they affect an individual, firm, or product. Macroeconomics studies the economic conditions in a country as a whole. It is concerned with issues such as inflation, Unemployment rate, and GDP
Solution :
The optimal order quantity, EOQ = 
EOQ = 
= 115.47
The expected number of orders = 

= 17.32
The daily demand = demand / number of working days

= 8.33
The time between the orders = EOQ / daily demand

= 13.86 days
ROP = ( Daily demand x lead time ) + safety stock

= 76.64
The annual holding cost = 

= 207.85
The annual ordering cost = 

= 207.85
So the total inventory cost = annual holding cost + annual ordering cost
= 207.85 + 207.85
= 415.7
Answer:
(i) Option (A) is correct.
(ii) Option (A) is correct.
Explanation:
(i) Marginal revenue refers to the change in total revenue obtained from the sale of an extra unit of a commodity. It is calculated by differentiating total revenue with respect to output. It is shown as:

where,
TR = Total revenue
q = output
(ii) In a perfectly competitive market, price is equal to both average revenue and marginal revenue. Since, firms in a competitive market are not required to reduce the price of their product for selling more number of units. Hence, the average revenue remains the same at all the level of output. That's why average revenue in equal to the price under perfect market conditions.
Therefore, every additional unit of an output is sold at a same price, so the marginal revenue obtained from an extra unit is constant and hence, price is equal to the marginal revenue.
Answer:
Explanation:
a ) We shall calculate the NPV of the project . If it is positive , then money can be invested
Cash outflow in the beginning =1000
Present value of perpetual annuity of 100 at 9.5 %
100 / .095
= 1052.63
which is more than initial cash outflow
So NPV is positive
Hence money can be invested.
b )
If machine takes one year to build , first year cash outflow of 100 will be absent
Present value of 100 after 1 year
= 100 / 1.095
= 91.32
So present value of annuity
= 1052.63 - 91.32
= 961.31
This is less than 1000 so
NPV is negative.
Hence money can not be invested.