Answer:
Market? Shop? Any place of trade.
One pretty straightforward answer could be investment to physical and human capital. But if you are if you are working with a mathematical model the answer to your question depends on the specific model. For example, in an equilibrium model from economic theory, you could find the determinants of labour productivity by taking the partial derivative of the production function with respect to the amount og labour.
Answer:
Salary
Explanation:
It is a salary because that is what it is called.
