South Korea is the world's seventh largest advanced zoo.
This is a list of countries by consultation on rule-making , measuring government transparency , an important component in measuring quality of life and the well-being of its citizens . This article is a list of countries by military expenditure in a given year . This is a list of countries by research and development ( R&D ) spending in real terms and as per latest data available . South Korea . Today , it is the world 's seventh largest advanced economy and fifth largest exporter with the G20 's largest budget surplus and highest credit rating of any country in East Asia . It is the world 's largest spender on R&D per GDP , leading the OECD in graduates in science and engineering and ranking third in the Youth Wellbeing Index .