Models that allows quantitative and qualitative variables

[Franco Sanchez]

In a rural household’s survey, I am working with Diff.
I have work with dummies for some topics such as el effect of coffee price crisis.
However, I would like to add some qualitative variable as the education level
0. No education
1. Functional illiteracy
2. Complete elementary school
3. High school
4. Higher education.
I think it important to include these levels of education and I am NOT agree to convert them in a 1-0 dummy.

I have been ask to not using regress
What is the best option of model for using?

[Carlo Lazzaro]

Franco:
welcome to this forum.
I do not understand why you was told not to use regression.
That said, the following toy-example might be in line with what you'after:

. set obs 5

. g edu_level=_n-1

. label define edu_level 0 "No education" 1 "Functional illiteracy" 2 "Complete elementary school" 3 "High school" 4 "Higher education"


. label val edu_level edu_level

. list

     +----------------------------+
     |                  edu_level |
     |----------------------------|
  1. |               No education |
  2. |      Functional illiteracy |
  3. | Complete elementary school |
  4. |                High school |
  5. |           Higher education |
     +----------------------------+

.