I'd say that Chavez and his family doing more to enrich themselves than plan for the country's future when oil prices inevitably dropped played a large part.
Now where there were few jobs there are none, and crime has gone from a big problem to a terrible problem. Soon there will be war.
These are not policies that benefit the poor.
Largely by redirecting money from oil exports to anti-poverty programs.
Before he took power that money was mostly siphoned off abroad and by the upper classes.
Do you really think the country would have fared much better if this practice continued?
Same cause last time as this time but last time was "all the fault of capitalism" and this one was "all the fault of socialism".