A Systems View Across Time and Space
Table 4 Regressions of adoption speed on average degree (positive externality effect)
From: Multiple peer effects in the diffusion of innovations on social networks: a simulation study
Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 | Model 7 | |
|---|---|---|---|---|---|---|---|
(30%) | (40%) | (50%) | (60%) | (70%) | (80%) | (90%) | |
(Intercept) | − 0.07 | − 0.05 | − 0.04 | − 0.03 | − 0.01 | 0.02 | 0.02 |
Number of households | − 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Ratio of seed adopters | 0.90 | 0.84 | 0.81 | 0.80 | 0.78 | 0.57 | 0.57 |
Experience coefficient (Var 1) | 0.87 | 0.99 | 1.07 | 1.08 | 1.02 | 0.74 | 0.74 |
Externality threshold (Var 2) | − 0.16 | − 0.19 | − 0.21 | − 0.23 | − 0.23 | − 0.22 | − 0.22 |
Average degree of Kin. (Var 3) | 0.01 | 0.01 | 0.02 | 0.02 | 0.01 | 0.01 | 0.01 |
Average degree of Nei. (Var 4) | − 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.01 |
Var 1 × Var 3 | 0.12 | 0.10 | 0.10 | 0.09 | 0.09 | 0.08 | 0.08 |
Var 2 × Var 4 | − 0.01 | − 0.00 | − 0.00 | − 0.00 | − 0.00 | − 0.01 | − 0.01 |
R 2 | 0.80 | 0.81 | 0.82 | 0.82 | 0.82 | 0.75 | 0.75 |