Arrange the following schools of thought in the order they emerged:
- Radical school
- Welfare or humanistic school
- Behavioural school
- Quantitative revolution
1
4 - 2 - 3 - 1
2
2 - 3 - 1 - 4
3
4 - 1 - 2 - 3
4
3 - 4 - 1 - 2
Arrange the following schools of thought in the order they emerged: