DAG Testing population as a mediator of slave trade and long term prosperity

gistfile1.txt

dag {
"Ethnic fractionalization" [pos="-0.656,0.548"]
"Historical population" [pos="-0.543,0.055"]
"Modern GPD per capita" [outcome,pos="0.182,0.314"]
"Population growth" [pos="-0.362,0.631"]
"Slave trade intensity" [exposure,pos="-0.886,0.266"]
"Spatial autocorrelation" [pos="-0.174,0.071"]
"State development" [pos="-0.033,0.566"]
"Ethnic fractionalization" -> "Modern GPD per capita"
"Historical population" -> "Ethnic fractionalization"
"Historical population" -> "Population growth"
"Historical population" -> "Slave trade intensity"
"Historical population" -> "State development"
"Population growth" -> "Modern GPD per capita"
"Slave trade intensity" -> "Ethnic fractionalization"
"Slave trade intensity" -> "Modern GPD per capita"
"Slave trade intensity" -> "Population growth"
"Slave trade intensity" -> "State development"
"Spatial autocorrelation" -> "Ethnic fractionalization"
"Spatial autocorrelation" -> "Historical population"
"Spatial autocorrelation" -> "Modern GPD per capita"
"Spatial autocorrelation" -> "Population growth"
"Spatial autocorrelation" -> "State development"
"State development" -> "Modern GPD per capita"
}