42. Barter transactions

The Group is a party to barter transactions. The table below presents revenues and costs of barter transactions executed on an arm’s-length basis. Revenue comprise revenue from services, products, goods and materials sold, costs comprise selling expenses.

for the year ended

31 December 2012 31 December 2011
Revenues from barter transactions 28,444 15,942
Cost of barter transactions 22,841 13,891
31 December 2012 31 December 2011
Barter receivables 3,838 3,175
Barter payables 1,304 3,045