The most common and simplest form of business is a sole proprietorship. Many small businesses operating in the United States are sole proprietorships. An individual proprietor owns and manages the business and is responsible for all business transactions. The owner is also personally responsible for all debts and liabilities incurred by the business.
The current total fertility rate for the world is 2.5. Influencing this are countries that have TFRs of 6 and higher such as Niger (7.6), Democratic Republic of the Congo (6.3), and Uganda (6.2).
In 1999, the world population passed the six billion mark. Latest official current world population estimate, for mid-year 2013, is estimated at 7,095,217,980. The chart below shows past world population data back to the year one and future world population projections through the year 2083. World Population Growth.