On the other hand, Shiller believes that more information regarding the asset market is crucial for its efficiency. Additionally, he alluded to John Maynard Keynes's explanation of stock markets to point out the irrationality of people while making decisions.
In contrast, Shiller stresses the significance of having more information about the asset market in order to maintain its efficiency. By referencing Keynes's theory on stock markets, he aims to illustrate how human behavior can lead to irrational decisions when investing.