Calculation of the elasticity of labour offer

[camara_cmb]

Hello

Im working with a very basic RBC model in my Advance Macro class. It s a typical problem of a social planner choosing consumption levels and hours of work for identical houses, a cobb douglas production function with a TFP shock, and a government expenditure shock.
The assingment is to calculate the elasticity of the labour offer with different forms of utility functions in terms of the log-linealized aproximation of the steady state. I have a specific calibration of some of the parameters, and some free parameters to be calculate. I know how to get the FCO of the level of consumption and of the hours of work, but from that point on, I dont know how to calculate the elasiticity.
Any comment or example will be more than welcomed!
Thank you

[jpfeifer]

You need to be more precise. The elasticity of what with respect to what? If you are talking about the Frisch elasticity, see Domeij/Floden (2006) - The labor-supply elasticity and borrowing constraints

[usamovnaurbi]

Elasticity is a means of measuring responsiveness. Look out the relative change in employment level for a relative change in the wage:

Elasticity of Labor Demand = % change in employment / % change in wage

If the wage goes up, employment will go down (all else constant.) If the wage goes down, employment will go up (all else constant.)