“…Due to the asymmetrical information, business firms need to incur cost to search the lowest prices to purchase and the highest prices to sale, the costs for negotiating, the costs of accurately specifying of a transaction in a longterm contract and the cost for monitoring the transaction agreements (Dyer, 1997;Hobbs, 1996;Williamson, 1985). Those costs for searching information and processing them are called as transaction cost (Coff, 2001;Dyer, 1997;Williamson, 1979bWilliamson, , 1985Zhang, 2009). Imperfect and asymmetrical information affects business firms in two ways: bounded rationality and opportunism which lead to the existence of transaction costs (Williamson, 1981).…”