Whereas earlier research had emphasized macroeconomic shocks on the demand side of the economy, Kydland and Prescott demonstrated that shocks on the supply side may have far-reaching effects.

• 早期的研究强调经济的需求方面的宏观冲击，基德兰德和普雷斯科特却论证了供给方面的冲击可以具有深远的效应。