Table 1 Descriptive statistics
From: Determinants of efficiency in residential electricity demand: stochastic frontier analysis on Japan
Description | Variable | Mean | Std. dev. | Maximum | Minimum |
|---|---|---|---|---|---|
Electricity demand (106Â kWh) | ED | 5315 | 5265 | 32,871 | 895 |
Real electricity rate (2005Â =Â 100) | P | 107.86 | 7.93 | 136.17 | 94.75 |
Household real income (JPY, millions) | IC | 6.81 | 1.26 | 10.16 | 4.04 |
Household size (person) | HS | 2.82 | 0.32 | 3.69 | 2.00 |
Household floor area (m2) | FA | 101.16 | 19.54 | 152.90 | 56.81 |
Ageing population ratio (%) | AG | 19.11 | 4.21 | 28.96 | 8.45 |
Cooling-degree day | CDD | 366 | 175 | 1186 | 0 |
Heating-degree day | HDD | 1107 | 470 | 2769 | 0 |