Not simply Doom but Latveria in general has always had a severe problem of 'tell but don't show.' From what little we know, the country has architecture of mostly Germanic origin, there's virtually no immigration/emigration and the mandatory prerequisite for all citizens is loyalty to Doom. So we can gleam that Latveria is authoritarian in the monarchic sense but other than that, it's all speculation.
We don't know what his employment policies are, we don't know what the countries economic practices are, we don't know if there's any kind of state body and in what capacity it might exist. All we get is DOOM BAD.