What does one-unit change represent in AMEs using margins?

[Faradj Koliev]

Hi all,

I use the "margins" command to calculate AMEs based on my ordered regression model. I wonder what a one-unit change for continuous variables represents? Is it one standard deviation? I also assume that for the dummy variables, it represents a shift to 1 from a base value of 0. Have I gotten this right? Thanks!

[William Lisowski]

If you are not already familiar with these papers, you may find the explanation you need, and more, in the nice overview of margins prepared by Richard Williams, a frequent contributor here, at http://www3.nd.edu/~rwilliam/stats/Margins01.pdf with a more detailed paper in the Stata Journal at http://www.stata-journal.com/article...article=st0260. I'll also note that Margins01.pdf is followed by Margins02.pdf ... Margins05.pdf covering more specialized topics.