Arthur Laffer Arthur Laffer Arthur Betz Laffer (; born August 14, 1940) is an American economist who first gained prominence during the Reagan administration as a member of Reagan's Economic Policy Advisory Board (1981–89). Laffer is best known for the Laffer curve, an illustration of the concept that there exists some tax rate between 0% and 100% that will result in maximum tax revenue for governments. He is the author and co-author of many books and newspaper articles, including "Supply Side Economics: Financial Decision-Making for the 80s". Laffer is Policy Co-Chairman (with Lawrence "Larry" Kudlow) of the Free Enterprise Fund and serves
Yerkes–Dodson law Yerkes–Dodson law The Yerkes–Dodson law is an empirical relationship between arousal and performance, originally developed by psychologists Robert M. Yerkes and John Dillingham Dodson in 1908. The law dictates that performance increases with physiological or mental arousal, but only up to a point. When levels of arousal become too high, performance decreases. The process is often illustrated graphically as a bell-shaped curve which increases and then decreases with higher levels of arousal. Research has found that different tasks require different levels of arousal for optimal performance. For example, difficult or intellectually demanding tasks may require a lower level of arousal