Table 10 Diagnostic tests
Commodity (market) | Causal direction | Tests | ||
|---|---|---|---|---|
BG–LM test | BPG-Het test | Ramsey RESET test | ||
Vertical transmission | ||||
Matoke (Kampala) | WP = > RP | 0.1098 (0.8961) | 0.7126 (0.6403) | 0.0005 (0.9827) |
Beans (Kampala) | WP = > RP | 0.2860 (0.9195) | 0.6665 (0.6498) | 0.2247 (0.6366) |
Maize (Masindi) | WP = > RP | 1.3679 (0.2465) | 1.5302 (0.1258) | 0.6323 (0.4290) |
Spatial transmission | ||||
Matoke | WP_Kampala = > WP_Mbarara | 0.2891 (0.7497) | 1.7687 (0.1421) | 0.1364 (0.7127) |
WP_Mbarara = > RP_Kampala | 0.0338 (0.9978) | 1.2305 (0.2953) | 0.6337 (0.4283) | |
Beans | WP_Masindi = > WP_Kampala | 0.1579 (0.9243) | 1.9954 (0.0750) | 0.0529 (0.8186) |
WP_Masindi = > RP_Kampala | 0.0321 (0.9980) | 1.4760 (0.1866) | 3.4610 (0.0663) | |
Maize | WP_Masindi = > RP_Kampala | 1.0581 (0.3522) | 1.6095 (0.0955) | 3.4825 (0.0659) |
WP_Tororo = > RP_Kampala | 0.5553 (0.5760) | 1.1017 (0.3695) | 0.3797 (0.5394) | |