Answer:
New Keynesian economists critique rational expectations by arguing that short-term wage stickiness is brought about by
b. imperfect information and efficiency wages.
Step-by-step explanation:
The assumption in macroeconomic theories is that economic agents, households, and companies exercise rational expectations. The New Keynesian economics posits that rational expectations have become distorted as a result of market failure, arising from asymmetric information and imperfect competition, thus questioning the ability of markets to self-regulate and self-correct.