Table 1.
Method | 0–4 | 5–9 | 10–14 | Notes |
---|---|---|---|---|
Engel’s | 0.87 | 0.72 | 0.62 | |
Rothbarth | <0 | 0.06 | 0.32 | Cigarettes |
Rothbarth | <0 | 0.22 | 0.64 | Adult clothing |
Ray | 0.88 | 0.91 | 0.83 |
Source: Maliki (2005) and calculation by authors.
Method | 0–4 | 5–9 | 10–14 | Notes |
---|---|---|---|---|
Engel’s | 0.87 | 0.72 | 0.62 | |
Rothbarth | <0 | 0.06 | 0.32 | Cigarettes |
Rothbarth | <0 | 0.22 | 0.64 | Adult clothing |
Ray | 0.88 | 0.91 | 0.83 |
Source: Maliki (2005) and calculation by authors.