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Coding of exogenous variables
| Exogenous variables: | Codes/Scales |
|---|---|
| Sex | female = 0, male = 1 |
| Education | below high school = 0, high school and above = 1 |
| Age | in years |
| Civil servant status | no = 0, yes = 1 |
| Executive position | no = 0, yes = 1 |
| Contact with customers | occasionally = 0, daily = 1 |
