Easy to disprove this study.
A person continually uses a philosophy that leads to promoting the socially inept, while punishing the workers and those who invest their wealth to create jobs. The result historically, and universally has been war, death, destruction, drops in production, health, employment, economic growth and increases in human misery - across every time period, and every region on earth.
Yet, this same person persists in pursuing this same failed philosophy.
Is this person smart, or stupid?