物品组合

GVA拍卖是理论上有效的多物品组合拍卖机制；

GVA is generally accepted as a efficient combinatorial auction mechanism .

但普通家庭购买的物品组合会随着新商品的问世而变化；

But what the average household buys changes with the arrival of new goods ;

但普通家庭购买的物品组合会随着新商品的问世而变化；也随着相对价格的变化而变化；还随着商品质量（优与劣）的变化而变化。

But what the average household buys changes with the arrival of new goods ; and with changes in relative prices ; as well as with variations – good and bad – in quality .

多物品最优组合供应模式确定问题的模型研究

Research on the Model of Determination of Multiple Products Optimal Combinatorial Supply Patterns

在市场经济条件下，精神生产的目的是通过交换，使个人所需各类物品达到最佳组合，达到效用或利益的最大化。

In the market-driven economy , the brain work aims at the optimum combination of the variety of goods every individual needs and the maximization of utility and benefits .