The level of a person's income and how much can be purchased. If taxes and statutory deductions increase, people will have less money to spend. One must also note the level of a person's savings.
When someone buys a product because everyone else is buying it. This is usually the case when a good becomes highly popular among a certain group of individuals.
When the cost of production increases the output of FIRMS generally decreases. This occurs because the goods/ services become less profitable and it is better to divert investments to more profitable goods.
The relationship between employers and employees must be good. If harmony does not exist, it will have a negative impact on the firm and productivity will be low. It is also necessary to project a good corporate image.
One of the government's primary roles is creating and enforcing the laws of the country. If these laws are restrictive there will be fewer business activities. If these laws are more liberal the result is an increase in business activities.
Taxes may be added to the price of a good which would help to limit the consumption of that good. E.g. Tax placed on cigarettes. A tax may be placed on the production of a good to limit how much is created.
The government can enhance business by providing access to clean running water, good roads, garbage collection, access to electricity etc. This increases the chances of consumers and supplies being able to access the business easily.