Which of the following is not a marginal condition of Pareto optimality criteria?
1
\(MRS^A_{x,y}=MRS^B_{x,y}=\frac{P_x}{P_y} \)
2
\(MRTS^x_{L,K}=MRTS^y_{L,K}=\frac{w}{r} \)
3
\(MRPT^K_{x,y}=MRPT^L_{x,y}=\frac{r}{w} \)
4
\(MRPT^K_{x,y} = MRPT^L_{x,y} = \frac{w}{r} \)w/r