International comparison and influencing factors of public investment in education—A case of 41 countries

In our study, “the ratio of public education expenditure to gross domestic product” was selected as an index to value a country´s educational investment level, the public investment in education data of more than 41 countries from 2003 to 2012 years were compared. Based on the compared data, using the regression analysis method, we forecast the public investment in education of the world countries in the next five years, we found that national economic development, national policy, developmental of science and technology and social contribution all would influence the public investment in education of the countries in the world.