Behavior of capital

 

Today we use non-aggregate model and add technology change and make it fluctuate

 

according to some random process. We approximate the continuous random model:

 

 

by switching model with infinite many states in order:

 

 

 

 .

 .

 .

 

where

 

 .

 .

 .

 

for many states.

 

We calculate each policy function for each as it is set like:

 

  

 

independently for each i and calculate the next index number.

 

The random process can be

 

 

 

 

for  as in 0818.

 

 

The random movement of technology change(A sample path of )

 

The corresponding capital movements

 

where the gap will not pile up because we usually do not use the same policy functions

 

in a row. The gap may become zero or very small in the middle.