Table 4 BFDD levels.
From: Export diversification in the national blue economic system: a case study of China
Level | BFDD | Blue firm code | Number of firms | Level feature |
|---|---|---|---|---|
First level firm | 6 | BJ13, SD14, SH33 | 3 | High development |
Second level firm | 4–5 | AH6, BJ17, BJ20, BJ27, BJ28, GD79, HeB6, HLJ2, HuB4, JS26, LN4, SD16, SD24, SH20, SH25, ZJ11, ZJ5 | 17 | Medium development |
Third level firm | 1–3 | Other blue firms except for first and second level firms | 144 | Low development |
