Definition
Sluggish factors: factors that cannot move freely across uses (sectors)
For sluggish factors, price differs between its usages (since thee factor cannot move freely across usages)
So we can use a CET function to allocate it to different usages given the relative price.
For example: consider capital as the sluggish factor here, with transformation elasticity as ETRAE:
Supply allocation
From the CET function (mathematically equivalent with the solutions of producers' behavior from CES function), we have:
The derived allocation of endowments is:
Where:
- QOES: quantity of the sluggish variable (es) used by sector p
- QO: quantity of the sluggish variable
- REVSHR: cost share of sector-specific use the sluggish variable
- PMES: price of the sluggish variable by sector
- ETRAE: transformation elasticity (can be indexed with es)
Its linearized form is:
EQUATION ENDW_SUPPLY
# This equation distributes the sluggish endowments across sectors(HS4) #
(all,i,ENDWS_COMM)(all,j,PROD_COMM)
qoes(i,j) = qo(i) - endwslack(i) + ETRAE(i) * [pm(i) - pmes(i,j)] ;
Market clear condition
Then the market clear condition for sluggish input is:
Level form
For each sector, the allocated sluggish input to that sector = the conditional demand of sluggish input in that sector
Linearized form
And the price index of the sluggish factor (calculated from the price of the sluggish factor by sectors) is:
Note
- Here mobility refers to the ability to move across uses (not between regions)
Example
- land in livestock vs. crops
- specialized labor
- specialized machinery and equipment