Systematic risk is external and uncontrollable by the firm. Unsystematic risk is internal and controlled by the firm. There are many other risks which can be listed out in systematic risk and unsystematic risk. Some of them are political risk, management risk, liquidity risk, etc. these are the risks which adversely effect the investment decisions.
Investment is made for a long-period and speculation is mainly focused on attaining profits through short-period commitment of funds in financial securities and physical securities.
Goods can be kept in stock for future sales, inventory of goods is possible. Services cannot be kept in stock, inventory of services is not possible. Goods are produced. Services are performed.
In Myopia, the person can see nearby objects, but cannot see far objects clearly. In Hypermetropia, the person can see far objects clearly, but cannot see near objects clearly.