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Table 1 Results of panel data analysis on the annual adoption ratio of residential PV systems by 11 wards in Kyoto City

From: Neighborhood influences on the diffusion of residential photovoltaic systems in Kyoto City, Japan

Independent variable Model 1 Model 2 Model 3
Intercept 9.38 × 10−3 *** 3.31 × 10−3 * 4.76 × 10−3 ***
Undiscounted payback period − 1.95 × 10−4 *** − 1.95 × 10−4 *** − 1.95 × 10−4 ***
Relative proportion of households having annual income < 3 million JPY − 3.30 × 10−3 * – –
Relative proportion of households having annual income ≥ 5 million JPY – 2.78 × 10−3 * –
Relative proportion of households having annual income ≥ 7 million JPY – – 1.28 × 10−3
F test statistic 92.89*** 92.14*** 89.98***
Adjusted R2 0.584 0.582 0.576
Number of observations 132 132 132
  1. ***Significant at 0.1%, *significant at 5%
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