Convert the lambda and ks parameters to nu1 and y0

The staple income elasticity has two formulations of its parameters. The one that uses nu1 (income elasticity at Y==1) and y0 (value of Y for which the elasticity is zero) is more intuitive, but it is incomplete. That is, theere are some valid models that simply cannot be expressed this way. The model can alternatively be expressed in terms of the lambda and ks parameters in its equations. This function allows an easy conversion from the latter representation to the former.

lamks2nu1y0(df)

Arguments

df	Data frame of lambda and ks parameters.

Value

data frame with converted values