Market Share Model of Price and Advertising Combined Game in Duopoly

The marketing share model of price and advertising in a duopoly market was studied in this paper. Market response curves of price and advertising were presented to calculate the reasonable range based on the market forecast results. The interaction effect of price and advertising was considered,and the game theory was applied to a two-stage price and advertising competition which involved the market share model. A marketing decision support system (MDSS) was developed and simulation data was provided to give the solutions. The operation results show that the leading enterprise makes higher price,spends more on advertising,and earns more profit,while the small-scale enterprise has to lower the price,spend less on advertising,and has slightly higher profit rate. The system is shown to be adaptable to a wide variety of realistic situations.

How Far Is China’s Grain Subsidies Level from the Ceiling of Amber Box Support?-Evaluation Based on WTO Rules

Using the aggregate measurement of support （AMS） approach of the World Trade Organization （WTO）, this study estimates China＇s product-specific and non-product- specific amber box support levels between 2008 and 2013. The result indicates that China＇s product-specific amber box support level has significantly increased but not yet exceeded the tolerable ceiling of de minimis and remains consistent with WTO rules on agricultural domestic support,＂ that there is still policy room for product-specific amber box support but the ceiling of de minimis has already imposed substantial constraint on China＇s grain price support policies; and that despite rapid increases in non-product-specific amber box support levels, future policy space remains significant. The result also suggests that China should make appropriate adjustments to product-specific amber box support policies in accordance with WTO rules on agricultural domestic support and make proper use of non- product-specific amber box support policies.