as the tax effort index model shows, the Korean economy can accommodate an increase in its tax burden. Thus, increasing tax revenue should prove to be the most effective method for financing Korea's social development.
(actual value of governmental expenditures/GDP) x 100/
(expected value of government expenditures/GDP)
For example, if a country has an index greater than 100, it means that its government expenditure is higher than expected considering the country's socioeconomic conditions.