Not sure why you are downvoted. Social market economy is the self-description in Germany, it's what you learn in school and how German politicians name the system.
The goal of social market economy is to 'correct undesirable effects' of free markets. Depending on your perspective, you categorize it as capitalist, socialist or in-between system.
The goal of social market economy is to 'correct undesirable effects' of free markets. Depending on your perspective, you categorize it as capitalist, socialist or in-between system.