C93, D22, D90, J16, O12
C93, I2, I1, J24
C93, D90, I28, J13, J24, M53
J71, C93
C93, I23
J16, J24, J81, C93
D74, I25, C93
Q48 – Energy: Government Policy; L25 – Firm Performance: Size, Diversification, and Scope; C93
C93, D90, H40, O18, Q54
C90, C93, D10, D14, D15, D22