I believe the answer is: Placebo
In research, placebo refers to the form of drug that would not give any effect to the subjects of the research. But, the research would make the subjects believe that they are taking the real drug while receiving placebo. Placebo could make the patient experiencing improvement simply because he/she believing that they taking the real drugs.
He was the leader of Iraq.
Countries trade<span> with each other when, on their own, they do not have the resources, or capacity to satisfy their own needs and wants. By developing and exploiting their domestic scarce resources, </span>countries<span> can produce a surplus, and </span>trade<span> this for the resources they need.</span>
