In the rapidly changing atmosphere of the global economy, productivity has become a very important concept for long-term economic growth, development, regional and global competitiveness, raising social living standards and increasing the level of welfare for countries. In the 21st century, when scientific knowledge, technology, innovation,…

The present study aims to determine the relative efficiency of 28 countries participated in PISA 2015 and TALIS 2013 based on student performance and teacher quality, and to sort the countries according to their efficiency scores by using a super efficiency model. Moreover, this study attempts to reveal important improvements countries must make…

This journal issue is devoted to the many problems faced by children with Acquired Immune Deficiency Syndrome (AIDS) who live in both developing and developed countries. Section 1 provides general information on the pandemic, defining AIDS and exploring the social aspects of the disease. It also addresses child health, child mortality, moral and…