The Marginal Rate of Technical Substitution Between Two Inputs

Multiple Choice

The marginal rate of technical substitution between two inputs:

A) shows the rate at which one input can be traded for another, holding output constant.
B) shows the efficient combination of inputs.
C) increases as we move down an isoquant.
D) shows the rate at which output can be increased by using more of both inputs.
E) shows the rate at which output decreases when using less of one of the inputs.