If you are referring to ranking conflict in finance, then it could be a number of things depending on the circumstances. If this is homework ;) then I'm assuming a ranking conflict would be caused by the payback period. Usually the project with the continuous cash flow is chosen because of the fact that it pays back faster. Hope this helps.
The end of a conflict is usually signified by a resolution.
Impatience
Money can be one of the most common causes of conflict in the family. Divorce rates show that it is one of the top causes.
an opposing force
Religion and or resources.
rude awakenings and PEOPLE.
Conflict over territory.
infidelity, dishonesty, miscommunication
Great Depression
The causes for the Arab-Israeli Conflict have not changed since 1973. Please see the Related Question below.
Refer to: What are the main causes of conflict between the President and Congress?
external conflict; internal conflict