Covariates in HB - are the given values already the differences to the base case (intercept)?

Dear all,

I have just run a HB estimation with different categorical variables as covariates. I am just wondering whether the output already indicates the difference to the base case or whether I need to calculate those differences.

As an example: we have asked customers if they are willing to pay little, medium or a lot. Running this as covariate will give an intercept (=willing to pay little) and two values for 'medium' and 'a lot'. Can I take these two values as absolute additions to the intercept in case their category is met?

Thank you & best,

Max

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