Book Review: Innovation and Competition in the Digital Network Economy: A Legal and Economic Assessment on Multi-tying Practice and Network Effects, by Jung Wook Cho. (Kluwer Law International, - World Competition View Book Review: Innovation and Competition in the Digital Network Economy: A Legal and Economic Assessment on Multi-tying Practice and Network Effects, by Jung Wook Cho. (Kluwer Law International, by - World Competition Book Review: Innovation and Competition in the Digital Network Economy: A Legal and Economic Assessment on Multi-tying Practice and Network Effects, by Jung Wook Cho. (Kluwer Law International, 32 3 World Competition