Decision making Management 44 Executive management 12 Mathematical models 12 Game theory 10 Planning 10 Strategic planning 10 Operations research 8 Problem solving 8 Big data 7 Social Psychology and Social Anthropology, (New March 2000) 7 Leisure, Recreation and Tourism Economics, (New March 2000) 6 Marketing 6 Thought and thinking 6 Tourism 6 Tourism and Travel 6 Uncertainty 6 Business planning 5 Choice (Psychology) 5 Fuzzy sets 5 Marketing and Distribution 5 Risk 5 Social choice 5 Agricultural Economics 4 Behaviour 4 Business 4 Consumer Economics 4 Consumer behavior 4 Consumer behaviour 4 Data mining 4