Finance (or financing) sources are the ultimate source of the capital used for a finance solution. Many solutions do not involve the transfer of monetary instruments but may still have a notable finance source that would include those individuals or groups likely to experience an economic cost because of the solution. Consideration should be made to assure that a finance source has the ability and willingness to pay for the solution and will generally be supportive of these initiatives. Finance sources are internationally categorized as national or international and public or private.