Microeconomics
It analyzes how individuals or one single factor makes decisions
in an economy. Here the economic problem of an only an individual
or a factor is studied and everything is assumed as equal or
constant.
For example, demand and supply of a certain company or a product
or individual income.
Macroeconomics
It analyzes how the economy as a whole makes decisions or
studies of the economic problem of the whole economy.
For example, aggregate demand and aggregate supply in an
economy, GDP of the economy, or inflation.
Now coming back to the question.
Studying both the above types is very important for the
business.
- Operations: the business is operating in the environment which
is affected by both the micro as well as macroeconomics. So it is
directly or indirectly affected by the changes occurring in
them.
- Shaping the decisions: Businesses need to carefully analyze
them before making any decisions. One wrong decision can affect the
very survivability of the business.
- Paying attention to trends: The environment is always changing
and so are the customer's needs and trends. If the business didn't
pay these activities then they might end up losing customers,
sales, and their profits.
- Price setting: A business set prices after considering many
things such as cost of production, inflation rate, needs of the
people, pricing policy of the competitors, rules by the government,
etc.
- Interest rates: This will affect both the business and
customer's decisions. Customer's usually increase their buying
habit when there is low-interest rates by using the loan for the
purchases. Businesses can use this opportunity to expand more.
- unemployment rate: this starts from the lower spending of the
customers on the goods and services. As the firms are having a
decrease in sales and less profit, they will start cutting on their
production and lay-off workers. This will increase the unemployment
rate.