Each subject played ten rounds of a "baseline" game where goods were sold at "straight" per-unit prices, and a further ten rounds each for two of the five price frames.
每位参加者将以“直接”单位价格先进行10轮消费，另外十轮消费将为五种价格中任意两种组合。
2
Roger looked uneasy at the start of the decider and gifted Nalbandian another break in the third game after two uncharacteristically loose shots that drifted beyond the baseline.