Bond allocations had increased by more than could be explained by the increase in bond prices over the course of the year.

同时资产配置中的债券投资比重,以高于当年债券价格上涨的速度,有了显著增加

耶鲁公开课 - 金融市场课程节选

So this could be summarized as the law of effect, which is a tendency to perform an action's increased if rewarded, weakened if it's not.

这种行为上的变化被称之为效果律，也就是说，行为倾向随奖励而增加，随惩罚而减少。

耶鲁公开课 - 心理学导论课程节选