Hello,

I am trying to use the doubleb command to estimate a respondent's willingness to accept a certain intervention.

However, I am receiving the following error code:

There is an inconsistency in at least one of your observations.
Check for situations where the response to the first question is yes but the second bid is lo
> wer than the first
or for situations where the response to the first question is no but the second bid is higher
> than the first.
After solving this issue try the command again.
r(498);

The first question (answer1) asks how much the respondent thinks OTHER PEOPLE are WTA for the intervention while the second question (answer2) askes how much the RESPONDENT is WTA for the intervention. The amount in the second question increases or decreases based on the yes/no response to the first question. So it is possible and not an error for the response to the first question to be no and the second bid to be higher than the first (for example).

How can I use a double-bounded model given this structure of the two survey questions?

Is there another STATA package that is more appropriate?