技术替代率（TRS）和边际技术替代率（MRTS）有区别么？

Question

技术替代率（the technical rate of substitution ——TRS）和边际技术替代率（marginal rate of technical substitution——MRTS）两个是一样的概念么？

Answer 1

是的，FOR TRS, is therate can a firm substitute one input for another without changing its output level，the same concept.

Answer 2

MRTS concerns marginal changes. TRS can be about discrete changes.
MRTS gives the slope of an isoquant, TRS is only an approximation of the slope.
MRTS(k,l)=lim TRS(k,l) <delta K approaching 0>本回答被网友采纳