Management and Economic Simulation Exercise (MESE), also known as JA Titan, is a computer simulation program developed by Junior Achievement.
The program is designed to help students develop skills such as decision-making and teamwork.
During the simulation, students act as corporate managers of their own companies that produce an imaginary product called Eco-Pen.
At the end of the simulation, the most successful team is the one that has the highest profit and market share.
During the competition, Junior Achievement students and alumni between the ages of 14 and 22 make team decisions and are scored based on profit and market share.