When Rousseau wrote his social theory, concepts of liberty and freedom were not new ideas. Hints of social contract reasoning are found in earlier works, most notably in Book 2 of Plato's dialog The Republic, as well as, in Socrates.
The total spending per iTunes account is $43 per year across all media, says Dediu. At 575 million iTunes accounts, that works out to $24.7 billion of consumer spending at iTunes per year. The average iTunes account's annual spending on software has followed music's trend, falling to $9 from $42 in 2008. However, average annual spending on apps has gone in the opposite direction, rising to $16 this year from $7 in 2008.
How do you have two iTunes accounts on one computer? Click on the Sign In button underneath the Search box (top right  corner of iTunes store). If the button is showing an email address  click it and then log out of that accouâ¦nt. Go through the Create  New Account procedure using the details for the second account. You  can then login using either account.