Table 3 BFD levels.
From: Export diversification in the national blue economic system: a case study of China
Level | BFD | Blue firm code | Number of firms | Level feature |
|---|---|---|---|---|
First level firm | 12 | SH20 | 1 | High diversity |
Second level firm | 6–10 | AH6, BJ13, BJ20, HLJ2, JS26, LN4, SD10, SD14, SD16, SD22, SD24, SH13, SH25, SH29, SH33, SH42, SH9, XJ1, ZJ5 | 19 | Medium diversity |
Third level firm | 1–5 | Other blue firms except for first and second level firms | 214 | Low diversity |
