In the standard notation for a two-input Leontief production function, K denotes capital. What does L denote?
Quantity of labour input
L denotes labour input. In a Leontief technology, output is limited by the input available in the smallest amount relative to its required fixed proportion. Labour is therefore not necessarily the binding input; that depends on the quantities of labour and capital.
| (i) Stage-I | (a) Total product declines, Marginal product is negative |
| (ii) Stage-II | (b) Total product increases at an increasing rate, marginal product positive |
| (iii) Stage-III | (c) Total product increases at a diminishing rate, marginal product is zero. |