Harold D. Lasswell is regarded as one of the major thinkers who developed the idea of Policy Sciences as a distinct and practical field of study. He introduced the concept in the post-Second World War period when social scientists were increasingly concerned with making knowledge useful for solving public problems. For Lasswell, policy sciences should not be limited to the study of government institutions or administrative procedures; they should focus on the processes through which societies make important decisions and allocate values. Lasswell defined policy sciences as the “knowledge of and in the decision processes of the public and civic order.” His approach was therefore strongly problem-oriented. He believed that social science should contribute directly to understanding and solving real social problems such as poverty, unemployment, inequality, conflict, education, health and public security. Policy research should provide useful knowledge to decision-makers rather than remain purely theoretical. An important feature of Lasswell’s approach was its multidisciplinary character. He argued that public problems are complex and cannot be