Heckprob

[Daniel Ribeiro]

Hello, I have a question related to " Heckprobit " command. This command uses the process suggested by Van de Ven and Van Praag of (1981) ? Or estimates the parameters jointly by maximum likelihood ? Regards, DR.

[Stephen Jenkins]

Daniel: welcome to the Forum. Please take a few minutes to read the Forum FAQ, including http://www.statalist.org/forums/help#references. Also, have a look at help heckprobit. The Description states

heckprobit fits maximum-likelihood probit models with sample selection.

You can click through to the Manual entry too, and get more detailed information under Methods and Formulae. In short, the answers to your questions were and are easily available to you. Again, reading the FAQ, please be sure to look at http://www.statalist.org/forums/help#before