【单选题】Determining firm performance is a complex interaction of firm effects and industry effects, with other factors also considered. Based on historical ysis, what do we know about firm and industry ef...
A.
Managerial actions rather than firm effects have a large role in firm performance.
B.
Macro environmental effects such as a recession have more impact than either firm or industry effects
C.
Firm effects have more impact on performance than industry effects.
D.
Industry effects have more impact on performance than firm effects.
【单选题】Is a decentralized, distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be alterred retroactively without the alteration of all su...