Income is conventionally denoted by "Y" in economics. John Hicks applied "I" for income, but Keynes wrote to him in 1937, "after hoping the two, I think it is actually easier to use Y for income And that i for expense. Income plays a central purpose in somebody’s economical properly-currently https://griffinnfhgg.blogaritma.com/33539523/fummel-income-streams-options