Prices of discounted tickets for economy class will rise by 20% starting Monday with a new pricing scheme taking effect among domestic airlines, China News Service reported.

Part Two analyzes net Banks services from economic perspective, mainly involving the externalities of net Banks services, scale economy of net bank services and the pricing of net Banks services.

Numerical result from IEEE-14 test system shows that the presented algorithm reflects the relationship of security and economy and is helpful to construct reasonable pricing system in power market.