The correct answer to this open question is the following.
Although there are no options attached or further reference, we can say the following.
The technique/tool you are using could be the Delphi technique.
The Delphi technique is a favorite method used in corporations by managers and leaders when they have to make business or operational decisions. The basics of this Delphi technique is that some questionaries are sent to group experts so they can analyze the information and come up with their conclusions. Then, these conclusions are shared with the decision-makers so they can proceed to make the best decision.
I believe the answer is: Availability heuristic
Availibility heuristic make a people develop a bias that make them think if something can be recalled, it must be important. Constantly Hearing positive things about lottery, would make the people recall the good fortune that the winners experience and make them much more likely to develop the tendency to buy the tickets.
Have a nice day sir! rhanks for points :)