1 Subjects: “...Economic theory and philosophy...”

2 Subjects: “...Theory of Inventive Problem Solving...”

3 Subjects: “...contingency theory...”

4 Subjects: “...agency theory...”

5 Subjects: “...replica theory...”

6 Subjects: “...ecological niche theory...”

7 Subjects: “...grounded theory...”

8 Subjects: “...protection motivation theory...”