Income distribution patterns among (between) the principal actors in the cassava-food value chain
| Actor | Income share (Sk) | Gini coefficient (Gk) | Correlation with total income distribution (Rk) | Percentage contribution to total income inequality [Dk = (SkGkRk/G)] | Source of elasticity of total inequality [Ek = (SkGkRk/G)- Sk] | ||
|---|---|---|---|---|---|---|---|
| Gini | SE | t-value1 | |||||
| Small | 0.07 | 0.44 | 0.021 | 20.948*** | 0.11 | 1.00 | −0.060 |
| Medium | 0.16 | 0.57 | 0.024 | 23.933*** | 0.60 | 9.30 | −0.067 |
| Processor | 0.30 | 0.79 | 0.017 | 47.485*** | 0.90 | 21.00 | −0.090 |
| Trader | 0.47 | 0.73 | 0.024 | 30.827*** | 0.93 | 54.08 | 0.071 |
| Total | 1.00 | 0.59 | 1.00 | ||||
| Actor | Income share ( | Gini coefficient ( | Correlation with total income distribution ( | Percentage contribution to total income inequality [ | Source of elasticity of total inequality [ | ||
|---|---|---|---|---|---|---|---|
| Gini | SE | ||||||
| Small | 0.07 | 0.44 | 0.021 | 20.948*** | 0.11 | 1.00 | −0.060 |
| Medium | 0.16 | 0.57 | 0.024 | 23.933*** | 0.60 | 9.30 | −0.067 |
| Processor | 0.30 | 0.79 | 0.017 | 47.485*** | 0.90 | 21.00 | −0.090 |
| Trader | 0.47 | 0.73 | 0.024 | 30.827*** | 0.93 | 54.08 | 0.071 |
| Total | 1.00 | 0.59 | 1.00 | ||||
Note(s): *** denotes the 1% statistical significance. 1The computed t-values are used to test whether the estimated respective Gini coefficients of the actors are statistically different from zero; thus, H0: Gk equals zero versus Gk is not equal to zero. Sk is the income share of each actor k and it indicates the contribution share of each actor to total income. Gk denotes the computed Gini coefficient of each actor k, and it measures the income inequality among actor k. Rk is the Gini correlation which represents the correlation between the income of each actor k and total income. Dk indicates the percentage contribution of each actor k to total income inequality. Ek is the partial derivative of the overall Gini coefficient with respect to a percentage change in income (yk) of actor k. Source: Authors’ computations based on authors’ primary survey data, 2016
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