"Online transaction has become an important part of the new economy and finance. At the same time, transaction payment fraud also presents an explosive trend. This unique compendium introduces risk control theories technologies of online transaction processes, and applies the traditional...

This paper examines the relation between prices in conventional stores and on the Internet. Main results from the theoretical analysis are i) we expect a discrete fall in prices in conventional stores as the share of the population with access to Internet reaches a critical level, ii) the...