This document discusses public expenditure, investment, salaries, and inequality in education sectors in several South American countries. It shows percentages spent on public expenditure for countries like Colombia, Ecuador, Chile, El Salvador and Guatemala ranging from 4.9% to 2.8% of GDP. Teacher salaries in countries like Colombia range from $700-1000 USD per month on average while private tutors make $12-27 USD per hour. There is also inequality between public and private education systems and universities in countries like Colombia.