Quadratic equations are polynomials, meaning strings of math terms. An expression like “x + 4” is a polynomial. They can have ...

For this, a normalized quadratic cost function was estimated. The results show important productivity gains with both technical change and scale effect playing important roles. The Journal of ...

Journal of Political Economy, Vol. 79, No. 3 (May - Jun., 1971), pp. 481-507 (27 pages) The paper indicates how the Shephard duality theorem may be utilized in order to obtain a system of derived ...