1 Subjects: “...invasion theory...”

2 Subjects: “...cultural distance theory...”

3 Subjects: “...collective action theory of logic...”

4 Subjects: “...evolutionary game theory...”

5 Subjects: “...axiomatic design theory (ADT)...”

6 Subjects: “...Modern Portfolio Theory (MPT)...”

7 Subjects: “...agency theory...”

8 Subjects: “...social trust theory...”

9 Subjects: “...harmony theory...”

10 Subjects: “...stakeholder theory...”

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

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

13 Subjects: “...fractal theory...”