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I am running an ordered logistic regression for my thesis. I am trying to test the relationship between counterterrorism aid and state repression levels in recipient countries. I ran my regression, and for my first model, my International War control variable has a coefficient-value of 38.007 and a very large standard error value (158,641,489.000). This seems very wrong to me, but I do not know what the problem is. The independent variable of International War is binary 0 = the given country was not part of an international war in the given year, 1 = the given country was part of an international war in the given year. the dependent variable is ordinal, ranges from 0 to 2. O meaning there were many state sponsored disappearances and 2 there were none. Does anyone know how this is possible and what it means? Did I do something wrong with my data? enter image description here

EmStaLo
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    Sounds like it might be perfect separation. – EdM May 18 '23 at 12:32
  • Why do you give three values (158,641,489.000) and what do they mean? – Christian Hennig May 18 '23 at 12:40
  • @ChristianHennig I think that means 159 million (or so). – Nick Cox May 18 '23 at 12:42
  • Rather than perfect separation I'd guess that the matrix of predictors may be near to ill-conditioned. It may be almost perfectly possible to reconstruct the International War variable from the other predictors, in which case the regression contribution of it will have a very large standard error and potentially a strange looking coefficient estimator. – Christian Hennig May 18 '23 at 12:43
  • @ChristianHennig what do you mean by the matrix of the predictors may be near to ill-conditioned? I am sorry, but I do not know what that means – EmStaLo May 18 '23 at 12:45
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    I explain it in the then following sentences. – Christian Hennig May 18 '23 at 12:45
  • @ChristianHennig should I then leave the variable in the regression or best take it out? I just really do not know how I just go about it in my analysis part, I have never heard of perfect separation or ill-conditioned matrixes. – EmStaLo May 19 '23 at 06:55
  • Sorry, I can't make recommendations not knowing the data, aim of analysis, and further background. – Christian Hennig May 19 '23 at 09:31

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